Friction acts in a direction ___________ to the object's direction of motion.
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1
Question 2
2.
Friction changes the energy of an object from kinetic energy to _______ energy
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1
Question 3
3.
What type of energy do all moving things have?
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Question 4
4.
What kind of energy is stored energy?
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Question 5
5.
When you stretch a rubber band you give it
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Question 6
6.
Refer to the following to answer question(s) 2, 3
Directions: The diagram below shows three positions of a marble when shot from a slingshot at a target. Use the diagram to answer any questions that follow.
Just before being released at point 1, what is true of the marble?
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1
Question 7
7.
What occurs when the marble is released?
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1
Question 8
8.
Which skier has the greatest gravitational potential energy in their present positions and why?
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1
Question 9
9.
At which point does the ball have the greatest amount of gravitational potential energy?
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1
Question 10
10.
At which point does the pendulum weight have the greatest amount of kinetic energy?
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1
Question 11
11.
At which point does the pendulum weight have the greatest amount of potential energy?
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1
Question 12
12.
A football player ran across the level field at a constant speed. What happened to the energy?
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1
Question 13
13.
After takeoff, a toy rocket went to a height of 25 m above the ground. What happened to the energy?
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1
Question 14
14.
The passengers screamed as the roller coaster rolled down the firt drop from a nearly stationary position at the top. What happened to the energy?
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1
Question 15
15.
What is the Law of Conservation of Energy?
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1
Question 16
16.
What has more potential energy: a car on the ground or a leaf10 feet in the air? Why?
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1
Question 17
17.
What is the correct equation for potential energy?
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1
Question 18
18.
What is the correct equation for work?
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1
Question 19
19.
What is the correct equation for kinetic energy?
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1
Question 20
20.
What unit is energy measured in?
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1
Question 21
21.
A 6 kg rock is falling from a 200 m cliff. What is the rock’s gravitational potential energy at 200 meters high? Draw a diagram and show work.
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1
Question 22
22.
A woman climbs 5.5 m high on a wall and gains 3600 J of potential energy. What is her mass?
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1
Question 23
23.
An 80-kg man is walking at a speed of 4.0 m/s. What is his kinetic energy?
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1
Question 24
24.
A tiger runs at a speed of 10m/s with 22,000 J of kinetic energy. What is the tigers mass?
