Physics, 29.12.2019 04:31 kayliebug2003

1. work is a transfer of
a. energy
b. force
c. mass
d. motion

2. a small 20-kilogram canoe is floating downriver at a speed of 2m/s. what is the canoe's kinetic energy?
a.22j
b.40j
c.80j
d.400j

3. an object's gravitational potential energy is not directly related to which of the following?
a. its height relative to a reference level
b. its mass
c. its speed
d. the acceleration due to gravity

4.which of the following is an example of an object with elastic potential energy?
a. a wind-up toy that has been wound up
b. a compressed basketball
c. a stretched rubber band
d. all of the above

5. the energy stored in gasoline is
a. chemical energy
b. electromagnetic energy
c. mechanical energy
d. nuclear energy

6. what is the formula for gravitational potential energy?
a. ke= 1/2mv^2
b. pe=ke
c. pe=mgh
d. 1/2mv^2=mgh

7. energy which travels through space in the form of waves is know as
a. electrical energy
b. electromagnetic energy
c. nuclear energy
d. thermal energy

Answers: 2

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1. work is a transfer of
a. energy
b. force
c. mass
d. motion

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