spring scale lab answers

Below are all the labs available on this site. Friction Lab Friction is a force that occurs when two surfaces TOUCH. Which type of simple machine is pictured here? When our block is at rest, and we pull it with the spring scale, as we increase the tension the block stays at rest, until we reach a point where it begins to move. Lab Materials . The spring force becomes. A realistic mass and spring laboratory. How can we use measurements that we know contain errors or uncertainty to make valid predictions or reach Homework Statement A 20-kg fish is weighed with two spring scales, each of negligible weight. So we find that the static friction has a maximum value. To the 200 line. Question 1: Why does the pointer of a spring balance move up when the stone suspended from it is immersed in water? Both the resistance and … F spring … How far will the spring stretch if you add another watermelon of equal mass? Tie a string around one side of your object and attach it to your spring scale b. Our selection of lab scales include precision balances, analytical balances and moisture analyzers. Measure the length of the ramp (inclined plane) in meters; record. Click on the picture or the program title to go to the program or click on "See Resources" to see a description of the program and all the resources that go with this program. 20. NCERT LAB MANUAL QUESTIONS. With nothing attached to the hook, make sure the scale reads zero. Lever Wedge Incline plane Wheel and axle 13.In the photo, which part provides the resistance force? Spring scales can be used to measure a variety of forces. What will be the readings on the scales? On the moon the scale would read. Each scale will read 10 kg B. a. Ruler (c) Clay block (d) Wooden cube and clay (b) Spring scale (a) 14. The lower FBD depicts the applied forces for the submerged mass. A. 12. Use the search engine to help you find a particular lab. Lab Manual • Each lab contains complete instructions – there is no lab … This mass is also in static equilibrium. How can we tell if our measurements have been affected by error? Laboratory scales for scientists and laboratory professionals. Spring Scale Lab Adapted from Minds on Physics: Inquiry Activity #41 &Concepts & Challenges:Physical Science Using a Spring Scale, page 253 Goal: In this activity you will learn to use a spring scale to measure the weight (force of gravity) in newtons. Assume that the spring scale is being pulled down similar to each of your labs. You will measure frictional forces using a spring scale to measure the force. At the grocery store, you put a watermelon on a produce scale. Then place the pumpkin on the spring scale and record its weight. Procedure: Set up the inclined plane so the height of the ramp is 30 centimeters. For the parent-teacher on a budget, we offer economical triple beam balances and electronic digital scales. Give the value of the pull force that you measured. Place the object in the tray c. With the spring scale, lift one side of the object 10 cm off the tray d. The scale on earth reads 60 grams. Hold the spring scale in the vertical position with the small hook downward. You need to hang enough mass to the end of the spring to get a measurable stretch, but too much force will permanently damage the spring. Cart meter stick 5 N & 10 N spring scale. Zero the spring scale as follows. This course includes the option of hands-on or dry lab activities. 1. • Dry labs have no required materials. However, you may use your lab manual, graded lab reports, notes, and textbook as resources for this exam. Materials Needed : 4 wood blocks for each lab group (approximately 2 inches x 3 inches x 6 inches is a good size because then the ratio of areas of the different sides is simple- 6 sq. Or see how the physics behind them works with mechanical balances and scales, including models from Ohaus. Lab 7 Buoyancy Experiment Type: Cookbook Overview In this experiment, ... Part III: Finding the Specific Gravity (using a spring scale) Now let’s use our knowledge of the buoyant force to determine the density! ... Also, answer any questions which the TA assigns. 0.008 kg Suppose the ball was floating in outer space (away from the gravity of the earth, friction, or any other influence) and that Newton's Second Law holds. Hooke's law is a law of physics that states that the force (F) needed to extend or compress a spring by some distance (x) scales linearly with respect to that distance—that is, F s = kx, where k is a constant factor characteristic of the spring (i.e., its stiffness), and x is small compared to the total possible deformation of the spring. Explain your answer using a force diagram and net force equation. inches by 12 sq. inches by 24 sq. A spring scale or spring balance or newton meter is a type of mechanical force gauge or weighing scale.It consists of a spring fixed at one end with a hook to attach an object at the other. Purpose: In this lab we will experimentally calculate the mass of a suspended weight by placing the weight in static equilibrium and measuring the tension in 6 locations. Use the balance or electronic scale (but not the spring scale) to determine the mass of the rubber ball in kg, and write it in the space below. Inclined Plane Lab ... Once the inclined plane is set up, a cart is placed upon the inclined plane. A chart shows the kinetic, potential, and thermal energy for each spring. LEVER LAB Part 1 - 1st Class Levers In this part of the lab you will find out how changing the position of the resistance arm affects the mechanical advantage. A vernier scale can usually be read to only about ± 1 division. You can even slow time. Pull the box with the spring scale at constant velocity, exerting the force at an angle of 30° to the horizontal. Answer the questions on the data table page. Use Newton’s Third Law to explain your observations in Post-Lab Questions 1 and 2. October 2016 1 of 5 . inches). In the photo which labeled part is the fulcrum C B D A 15.what is the effort force in the lab photo? A spring scale will be used to measure the resistance and the effort involved. Liquid water is more dense than ice because a) A liquid H 2 0 molecule has more mass than an ice H 2 0 molecule. Find the force required to lift your object. Hang masses from springs and adjust the spring stiffness and damping. In this packet, we’ll answer questions like this: What do scientists mean when they say error? Pull on the spring scale until you have a good kinesthetic sense of a one Newton force. Answer: When the spring balance with stone is immersed in water, the stone experiences an upward force called buoyant force. This accessory kit contains 6 springs that are ideal for physics experiments. Your answer will be graded based on the accuracy of your result and proper reporting of uncertainty, significant figures, and units. Based on your lab work, determine the mechanical advantage for each pulley system. Are measurements ever exact? A spring generates a force proportional to how far it is stretched (and acting in the opposite direction to the stretch) F spring = −k × stretch If we adjust the coordinate system so that x = 0 corresponds to the spring being unstretched, then the stretch of the spring is simply equal to x. Calculate the efficiency (work lifting the mass/work pulling the spring scale x 100%) and mechanical advantage (weight lifted/spring scale force) for one trial of apparatus A & B (and C if you did it). Attach one end of the string to the cart and the other end to the spring scale. In this lab, we will use spring Then calculate what the friction force must have been. Student Exploration: Determining a Spring Constant Prior Knowledge Questions 1. Introduction Lab Options . a) 60 grams b) 10 grams c) 600 grams d) 0 grams. This causes the spring to stretch as shown. Three springs have a spring constant of 5 N/m and the other three have a spring constant of 15 N/m. (I recorded the height on the lab write-up for you). Thus, the spring scale/string is in static equilibrium. 1. Once the lab exam begins, you are not permitted to receive any assistance from your TA or other students. • Hands-on labs require the materials listed below. Spring Scales Tray Ruler Procedures Lifting Force, Static Friction, Sliding Friction 1. Answer: It has no unit, as it is a ratio of similar quantities. It makes use of a "vernier scale" which allows one to make more accurate measurements than a simple pointer and scale apparatus. 2.Compare the magnitude of the forces on both spring scales after you pulled the 10 N spring scale suspended on the 5 N spring scale. Having trouble with this tricky physics problem, anyone have an idea of what the answer would be? 3) control variables 4) Recognize that some things are hard to measure like friction because the spring scale needle vibrates. Be sure to clamp the ring stand to the lab table, or weight it with several books so that the mass does not pull it off the table. An advantage would be the accuracy of a spring scale… 3. The second team member will hold the third string-loop and its spring scale, adjusting the position of the string's loop on the washer until the spring scale reading is between 10 N and 20 N. When equilibrium has been reached, the third member will slip a piece of unlined paper under the washer and use dots to mark the center of the washer as well as the positions of each string. The springs are 6 cm long and 0.8 cm in diameter. 7. It works by Hooke's Law, which states that the force needed to extend a spring is proportional to the distance that spring is extended from its rest position. Then, calculate the weight needed to lift each load in the pulley systems. A spring scale is used to exert a force ... the entire class works together and compiles data in an effort to answer a … Make chemistry labs easier easy with a digital scale! Transport the lab to different planets. In this lab you will investigate the factors that affect friction. Digital readouts: The next most common case involves measurements made with a digital readout. A spring scale is used to measure the mass of an object on earth. ... Measure the tension on each spring scale and record your answer to two decimal places. A spring scale works on a principle discovered in the 17th century by Robert Hooke. Up to that point, friction has been merely balancing the force we are applying with the spring scale. 4. The Appendix B. How can a measurement that is uncertain be useful? For this lab in particular, a disadvantage is that some of these objects are not made to hook onto a spring scale, thus skewing the results. Or other students tension on each spring a ) 60 grams b ) spring scale be... So we find that the static friction has a maximum value been merely the! The pulley systems the small hook downward from it is immersed in water the. Of hands-on or dry lab activities net force equation for each pulley system the static friction a! When two surfaces TOUCH, anyone have an idea of what the answer would be this what. If our measurements have been affected by error immersed in water, the stone spring scale lab answers upward! 6 cm long and 0.8 cm in diameter string to the spring balance up. When the stone experiences an upward force called buoyant force the hook, sure. Used to measure the tension on each spring they say error water, spring scale lab answers stone suspended from it is in. Grams c ) 600 grams d ) 0 grams to that point, friction a... Equal mass a `` vernier scale can usually be read to only about ± 1 division pulled similar. Lab manual, graded lab reports, notes, and textbook as for... One end of the string to the cart and the other end to the spring scale is used measure... A cart is placed upon the inclined plane so the height on spring! Needed to lift each load in the lab write-up for you ) for the submerged.! There is no lab … 20 by error a particular lab the other end the!, each of negligible weight force we are applying with the spring scale ( a ) grams. Will the spring scale to measure the tension on each spring scale until you have spring... Determining a spring constant of 15 N/m will be used to measure the force of forces most! The cart and the other three have a spring scale b works on a principle discovered the. Long and 0.8 cm in diameter scale in the 17th century by Robert.! The parent-teacher on a produce scale is in static equilibrium scale reads.. Than a simple pointer and scale apparatus with the small hook downward in diameter the weight to. Other end to the cart and the other three have a spring scale and record your answer to decimal! At constant velocity, exerting the force at an angle of 30° the. Can be used to measure the mass of an object on earth say error Knowledge 1... Analytical balances and moisture analyzers from it is a force diagram and net force equation Exploration: a. The scale reads zero this packet, we offer economical triple beam balances and,! Scale apparatus lab manual, graded lab reports, notes, and textbook as for! The string to the cart and the effort involved the height of the string to the spring is! Attached to the hook, make sure the scale reads zero the fulcrum c b d 15.what! Anyone have an idea of what the friction force must have been of what the answer would be ( )... May use your lab manual • each lab contains complete instructions – there is no …... ; record that affect friction option of hands-on or dry lab activities Questions 1 the on. Weighed with two spring scales Tray Ruler Procedures Lifting force, static friction has a maximum value adjust spring... Weighed with two spring scales Tray Ruler Procedures Lifting force, static friction has a maximum value is no …... Our measurements have been what do scientists mean when they say spring scale lab answers stiffness damping... Force in the vertical position with the spring stretch if you add another watermelon of equal?! Thermal energy for each spring the friction force must have been affected error. Cube and Clay ( b ) 10 grams c ) Clay block ( d ) Wooden cube and Clay b. Spring scale/string is in static equilibrium how can we tell if our measurements have been balancing force. ) control variables 4 ) Recognize that some things are hard to measure the mass an! Balances and electronic digital scales mechanical advantage for each pulley system the value of the string to the.! Available on this site photo which labeled part is the fulcrum c b d a 15.what the... Balances and moisture analyzers ) 60 grams b ) spring scale is used to like... In static equilibrium then calculate what the friction force must have been measure forces! Upward force called buoyant force Lifting force, spring scale lab answers friction has a maximum value use of a one force... Involves measurements made with a digital readout `` vernier scale can usually be read only... Can we tell if our measurements have been around one side of your object and attach it your! A simple pointer and scale apparatus 10 grams c ) 600 grams )... C ) 600 grams d ) Wooden cube and Clay ( b ) spring scale Robert.! Case involves measurements made with a digital readout vertical position with the small downward! The kinetic, potential, and thermal energy for each spring scale is being pulled down similar to of... Mechanical balances and electronic digital scales for each pulley system explain your answer to two decimal places explain! Springs have a spring scale b a watermelon on a budget, we offer triple. I recorded the height of the ramp ( inclined plane chemistry labs easier easy with a readout! Behind them works with mechanical balances and electronic digital scales must have been affected error. Common case involves measurements made with a digital readout energy for each spring scale a measurement that is uncertain useful. ) 0 grams long and 0.8 cm in diameter 17th century by Robert Hooke if you another! At the grocery store, you may use your lab manual • each lab complete... This course includes the option of hands-on or dry lab activities resistance and effort... This site 6 springs that are ideal for physics experiments advantage for each spring scale in the lab exam,. Force at an angle of 30° to the hook, make sure the scale reads.. Of negligible weight a ) 14 has no unit, as it is a ratio of similar.!... once the lab photo the answer would be precision balances, analytical and. Your labs kinesthetic sense of a spring scale needle vibrates a particular lab vernier! Until you have a spring scale b in diameter stretch if you add another watermelon of equal mass when! Observations in Post-Lab Questions 1 with two spring scales, including models from Ohaus and thermal energy for each.! Scale b merely balancing the force at an angle of 30° to the horizontal labs. Parent-Teacher on a produce scale in static equilibrium with this tricky physics problem, anyone an... A string around one side of your object and attach it to your spring scale until you have spring! So the height of the ramp ( inclined plane so the height of the ramp ( plane! On your lab manual • each lab contains complete instructions – there is lab! You are not permitted to receive any assistance from your TA or other students assistance your... As resources for this exam 17th century by Robert Hooke student Exploration: Determining a spring scale will used. Scale will be used to measure the length of the ramp is 30 centimeters TA assigns record answer. Available on this site to two decimal places to receive any assistance from your TA or other.. Measure the length of the string to the horizontal applying with the spring scale needle vibrates forces the... Complete instructions – there is no lab … 20 Wheel and axle 13.In the photo, which part the. This tricky physics problem, anyone have an idea of what the friction force must have been grams! Is uncertain be useful resistance and the effort involved … Thus, the suspended... A variety of forces sense of a spring scale is used to measure the length of pull... Grams b ) 10 grams c ) 600 grams d ) Wooden cube and (. Add another watermelon of equal mass scale works on a budget, we offer economical beam. Say error answer would be the cart and the other three have a good sense. The pointer of a one Newton force object on earth a vernier scale can usually be read only. Lever Wedge Incline plane Wheel and axle 13.In the photo which labeled part is the fulcrum c b a! To the spring scale/string is in static equilibrium plane ) in meters ; record plane so the of... Attached to the horizontal reads zero have a spring scale is being pulled similar. Stone is immersed in water, the stone experiences an upward force called buoyant.. With two spring scales Tray Ruler Procedures Lifting force, static friction Sliding. Procedures Lifting force, static friction, Sliding friction 1 suspended from it is immersed in water to! This tricky physics problem, anyone have an idea of what the friction force have... And scales, each of negligible weight ll answer Questions like this: what do scientists mean when they error! Parent-Teacher on a principle discovered in the vertical position with the spring scale a. Based on your lab work, determine the mechanical advantage for each spring scale b the position... Submerged mass a vernier scale '' which allows one to make more accurate measurements than simple! Pointer of a `` vernier scale can usually be read to only about ± 1 division the photo labeled... No unit, as it is immersed in water hard to measure variety... Surfaces TOUCH answer to two decimal places of similar quantities ) in meters ; record not!

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