Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

Period _____ Date ______ Energy, Work and Power ..., Summaries of Sculpture

Period _____ Date ______. Energy, Work and Power. WORKSHEET: KINETIC AND POTENTIAL ENERGY PROBLEMS. 1. Stored energy or energy due to position is known as ...

Typology: Summaries

2021/2022

Uploaded on 08/01/2022

hal_s95
hal_s95 🇵🇭

4.4

(652)

10K documents

1 / 8

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
Name __________________________________ Period _____ Date ____________
Energy, Work and Power
WORKSHEET: KINETIC AND POTENTIAL ENERGY PROBLEMS
1. Stored energy or energy due to position is known as ____________________
energy.
2. The formula for calculating potential energy is _______________.
3. The three factors that determine the amount of potential energy in an object are
____________________, ____________________ and ____________________.
4. Potential energy is measured in units of _______________.
5. Mass must be measured in units of _______________.
6. Gravitational pull must be measured in units of _______________.
7. Height must be measured in units of _______________.
8. Calculate the potential energy of a rock with a mass of 55 kg while sitting on a
cliff that is 27 m high.
9. What distance is a book from the floor if the book contains 196 Joules of potential
energy and has a mass of 5 kg?
10. An automobile is sitting on a hill which is 20 m higher than ground level. Find the
mass of the automobile if it contains 362,600 J of potential energy.
11. Energy of motion is known as ____________________ energy.
12. The formula for calculating kinetic energy is _______________.
13. The two factors that determine the amount of kinetic energy in an object are
____________________ and ____________________.
14. Kinetic energy is measured in units of _______________.
15. Mass must be measured in units of _______________.
16. Velocity must be measured in units of _______________.
pf3
pf4
pf5
pf8

Partial preview of the text

Download Period _____ Date ______ Energy, Work and Power ... and more Summaries Sculpture in PDF only on Docsity!

Name __________________________________ Period _____ Date ____________

Energy, Work and Power

WORKSHEET: KINETIC AND POTENTIAL ENERGY PROBLEMS

  1. Stored energy or energy due to position is known as ____________________ energy.
  2. The formula for calculating potential energy is _______________.
  3. The three factors that determine the amount of potential energy in an object are ____________________, ____________________ and ____________________.
  4. Potential energy is measured in units of _______________.
  5. Mass must be measured in units of _______________.
  6. Gravitational pull must be measured in units of _______________.
  7. Height must be measured in units of _______________.
  8. Calculate the potential energy of a rock with a mass of 55 kg while sitting on a cliff that is 27 m high.
  9. What distance is a book from the floor if the book contains 196 Joules of potential energy and has a mass of 5 kg?
  10. An automobile is sitting on a hill which is 20 m higher than ground level. Find the mass of the automobile if it contains 362,600 J of potential energy.
  11. Energy of motion is known as ____________________ energy.
  12. The formula for calculating kinetic energy is _______________.
  13. The two factors that determine the amount of kinetic energy in an object are ____________________ and ____________________.
  14. Kinetic energy is measured in units of _______________.
  15. Mass must be measured in units of _______________.
  16. Velocity must be measured in units of _______________.

Name __________________________________ Period _____ Date ____________

Energy, Work and Power

  1. Calculate the kinetic energy of the rock in problem #8 if the rock rolls down the hill with a velocity of 8 m/s.
  2. Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.
  3. Find the mass of a car that is traveling at a velocity of 60 m/s North. The car has 5,040,000 J of kinetic energy.
  4. How fast is a ball rolling if it contains 98 J of kinetic energy and has a mass of 4 kg?

Name: __________________________________________________ Date: ____________Period: _____

Energy, Work, and Power Page 2 of 2

HOMEWORK PROBLEMS:

7. PE = 8. PE = 52 J

m = 3 kg m =? g = 9.8 m/s^2 g = 9.8 m/s^2 h = 40 m h = 18 m

9. PE = 74 J 10. PE =?

m = 3.8 kg m = 5 kg g = 9.8 m/s^2 g = 9.8 m/s^2 h =? h = 22 m

  1. What potential energy is acquired by a hammer with a mass of 0.75 kg when raised 0.35 m?
  2. A book with a mass of 1 kg is dropped from a height of 3 m. What is the potential energy of the book when it reaches the floor?
  3. At what height is an object that has a mass of 50 kg, if its gravitational potential energy is 9800 J?
  4. What is the mass of an object if its gravitational potential energy is 3822 J and it is 15 m above the ground?
  5. An object with a mass of 20 kg and potential energy of 584 J is what distance above the ground?

Name: _______________________________________ Date: _____________________ Period: ________

Page 1 of 2

Write the equation and units for work:

  1. A weight lifter lifts a set of weights a vertical distance of 2 m. If a constant net force of 350 N is exerted on the weights, what is the net work done on the weights?
  2. A shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 degrees downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50 m length of aisle.
  3. If 2 J of wok is done in raising a 180 g apple, how far is it lifted?
  4. For each of the following cases, indicate whether the work done on the second object in each example will have a positive or a negative value. a. The road exerts a friction force on a speeding car skidding to a stop.

b. A rope exerts a force on a bucket as the bucket t is raised up a well.

c. Air exerts a force on a parachute as the parachutist falls to Earth.

  1. If a neighbor pushes a lawnmower four times as far as you do but exerts only half the force, which one of you does more work and by how much?

Name ____________________________ Date _______________ Period _____ Worksheet: Work

Work Power and Energy Page 1 of 2

Write the equation and units for work:

  1. How much work does Bobby perform in pushing a 35 N crate a distance of 4 meters? list known values formula substitution answer & units
  2. How far will a 70 N crate be moved if 3500 J or work are accomplished? list known values formula substitution answer & units
  3. What force is needed to move a barrel 25-m if 225 J of work are accomplished?
  4. Peggy uses a force of 40 N to move the grocery basket 18 meters. How much work did she perform?
  5. How far will a 150 N crate be moved if 600 J or work are performed?
  6. What force is needed to lift a box that weighs 300 N if 15000 J of work are accomplished?

Name ____________________________ Date _______________ Period _____ Worksheet: Work

Work Power and Energy Page 2 of 2

  1. How far will a 700 N crate be moved if 2800 J or work are accomplished?
  2. What force is needed to move a barrel 45-m if 3600 J of work are accomplished?
  3. How much work does Billy perform if he pushes the 8000 N stalled car a distance? of 25 meters?
  4. Grant stands 3 meters from the check out at the grocery store holding a 20 N bag of potatoes for 10 minutes. How much work does he perform?