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WorksheetsWork and energy 10QT
Total questions: 10
Worksheet time: 10mins
Name
Class
Date
1.
The energy associated with motion is called
a)
Kinetic energy
b)
Elastic potential energy
c)
Gravitational potential energy
d)
Nuclear energy
2.
When you rub your hands together on a cold day, you use friction to convert
a)
Mechanical energy into thermal energy
b)
Thermal energy into nuclear energy
c)
Nuclear energy into electrical energy.
d)
Electrical energy into radiant energy
3.
How much work is being done with 200 N of force to the right on object that moves 426 meters to the right? (assume the force and displacement are in the same direction)
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
4.
Gravitational potential energy depends on the ________ and ________ of the object.
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction
5.
What is the formula for calculating the total amount of mechanical energy?
a)
ME = KE + PE
b)
KE = ME + PE
c)
PE = mgh
d)
ME = 1/2 mv2
6.
A 78-kg skydiver has a speed of 62 m/s at an altitude of 870 m above the ground. Determine the total mechanical energy of the skydiver.
a)
816 kJ
b)
15.0 kJ
c)
666 kJ
d)
668 kJ
e)
500 kJ
7.
Calculate the KE of a runner that has a mass of 80 kg and is running at a velocity of 8 m/s
a)
5120 J
b)
320 J
c)
640 J
d)
2560 J
8.
____________ is the ability to cause change.
a)
Energy
b)
Force
c)
Friction
d)
Motion
9.
if you push a cart with a force of 60 N resulting in 120 J of work.. how far did you move the cart?
a)
7200 m
b)
0 m
c)
2 N
d)
2 m
10.
The transfer of energy through motion is....
a)
Work
b)
Energy Transfer
c)
Fuel
d)
Elastic
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