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Quiz Sciences
Quiz Sciences
Energy and Machines
created by
Jena.13
on 24 Nov 11, enabled by
jimmy
Sciences
Science
Medium level
(68% of success)
16 questions - 492 players
4th grade Science Test-Energy and Machines
1
What is the ability to do work called?
Load
Energy
Force
2
When wood is burned, stored energy changes to
Mechanical energy
Heat energy
Heat and light energy
3
What is stored energy called?
Heat energy
Potential energy
Kinetic energy
4
How does a lever help do work?
By saving energy
By increasing the force needed
By decreasing the force needed
5
A compound machine is made up of
A fulcrum
Two or more simple machines
An inclined plane
6
What kind of energy does a baseball hit by a bat have?
Mechanical energy
Heat energy
Electrical energy
7
Which can change ELECTRICAL energy to SOUND energy?
Radio
Oven
Fire
8
Which one is the energy of MOTION?
Potential energy
Kinetic energy
Work
9
Why is a fixed pulley useful?
It saves energy
It changes the direction of a force
It decreases the force needed to lift an object
10
What does a battery hold?
Kinetic energy that becomes heat energy
Potential energy
Stored energy energy that becomes electrical energy
11
What kind of energy do food and fuels contain?
Chemical energy
Electrical energy
Light energy
12
Which one is NOT an example of kinetic energy?
Flying baseball
Baseball at rest on the ground
Baseball being thrown
13
Which one of these machines DOES NOT decrease force?
Wheel and axle
Inclined plane
Fixed pulley
14
Which statement is NOT true?
Wood changes from chemical to light energy.
Wood changes from chemical to heat energy.
Wood changes from chemical to electrical energy.
15
Which statement is NOT true?
A radio changes electrical energy to sound energy.
A battery changes chemical energy into potential energy.
A boy on a rope is an example of potential energy.
16
Which list includes the simple machines that make up a can opener?
Inclined plane, lever, and wheel and axle
Lever, fixed pulley, and wheel and axle
Inclined plane, wedge, fixed pulley
Let's GO
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created
11 yrs ago
by
Jena.13
Medium level
68%
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Generated on 4 Jul 22, 1h39