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WorksheetsEnergy, Work, Power, Simple Machines
Total questions: 30
Worksheet time: 34mins
Name
Class
Date
1.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
2.
Stored energy that an object has due to its position or chemical composition is...
a)
Potential
b)
Kinetic
c)
Mechanical
3.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Electromagnetic
4.
What is the law that states that energy cannot be created or destroyed only transform form one energy to another?
a)
Law of Conservation of Energy
b)
Law of Gravity
c)
Law of Inertia
d)
None of these
5.
What do we call a change from one form of energy to another?
a)
Energy form
b)
Energy transformation
c)
Kinetic energy
d)
Potential energy
6.
(3.2) What is Mechanical Energy?
a)
Kinetic
b)
Potential
c)
Thermal Energy
d)
The sum of kinetic and potental energy that causes force to move an object any distance.
7.
1/2 mv2
a)
KE
b)
PE
c)
Work
d)
Power
8.
MGH
a)
KE
b)
PE
c)
Work
d)
Power
9.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
10.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases
c)
The kinetic energy decreases while the potential energy increases
d)
Bothe the potential energy and kinetic energy increase
11.
When a pendulum swings, at which point is kinetic energy highest:
a)
1
b)
2
c)
3
d)
4
12.
When a pendulum swings, at which point is potential energy at its greatest
a)
1
b)
2
c)
3
d)
4
13.
What is the unit used to measure work?
a)
Joule
b)
Watt
c)
Newton
d)
Pascal
14.
What is the unit used to measure Power?
a)
Joule
b)
Watt
c)
Newton
d)
Pascal
15.
When gliding across the ice while ice skating, how much work are you doing?
a)
0 J
b)
more than 0 J
c)
less than 0 J
d)
you need more info
16.
Which has greater KE, a car traveling at 30 m/s or a second car that is 1/2 as massive, but traveling at 60 m/s?
a)
car 1
b)
car 2
c)
both have the same KE
17.
A job is done slowly, and an identical job is done quickly. Both jobs require the same amount of ___, but different amounts of _____
a)
work, energy
b)
power, work
c)
work, power
d)
force, work
18.
Friction causes energy to be transformed from KE to what?
a)
PGE
b)
chemical
c)
thermal
d)
elastic
19.
LT6. What energy transformation occurs that helps keep your body temperature up?
a)
chemical to thermal energy
b)
thermal to chemical energy
c)
chemical to electromagnetic
d)
chemical to mechanical
20.
LT6. What energy transformation occurs when your body turns the food you ate into energy that helps you to move and exercise?
a)
chemical to thermal
b)
chemical to mechanical
c)
mechanical to chemical
d)
mechanical to thermal
21.
LT6. explain the multiple transformations that occur when you strike a match
a)
mechanical-->thermal-->chemical-->thermal
b)
potential --> kinetic
c)
electrical ---> thermal ----> mechanical
22.
LT6 explain the multiple transformations that occur when you use an electric dryer to dry your clothes
a)
mechanical ---> electrical ---> thermal
b)
thermal ----> electrical ---> mechanical
c)
electrical ---> mechanical ---> thermal
23.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
pulley
d)
screw
24.
Which of these is an example of a wedge?
a)
skateboard
b)
broom
c)
stairs
d)
butter knife
25.
Which is an example of someone using a simple machine to do work?
a)
a boy runs across a football field
b)
a banker counts money
c)
a mother pushes a stroller up a ramp
d)
a girl eats a sandwich
26.
Which of the following does a simple machine do?
a)
allows the users to apply less force over a longer distance
b)
reduce the amount of force needed to do work
c)
Both of the above
27.
A _____ is a fixed bar that us free to move around a fixed point known as a fulcrum.
a)
pulley
b)
inclined plane
c)
lever
28.
Consists of two circular objects; a central shaft and a wheel.
a)
wheel and axle
b)
screw
c)
pulley
29.
A fishing pole is an example of a compound machine. What simple machines are used to make up this compound machine?
a)
lever, wheel and axle, pulley
b)
wheel and axle, inclined plane, pulley
c)
wheel and axle, pulley, inclined plane
30.
If an object is too heavy to move up a ramp, what is the best way to fix the problem?
a)
Increase the slope of the ramp
b)
Increase the elevation of the ramp
c)
Increase the length of the ramp
d)
Increase the friction of the ramp
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