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WorksheetsMotion- Energy (simple machines, circuits) #4
Total questions: 23
Worksheet time: 31mins
Name
Class
Date
1.
Any device that makes work easier is called a ______________________.
a)
Joule
b)
prop
c)
lever
d)
machine
2.
No machine in existence has 100% efficiency due to ____________________.
a)
magic
b)
friction
c)
smoke
d)
input
3.
Which of these is an example of a wedge?
a)
skateboard
b)
broom
c)
stairs
d)
butter knife
4.
Stairs are which type of simple machine?
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
5.
A light bulb is an example of which simple machine?
a)
wedge
b)
pulley
c)
incline plane
d)
screw
6.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Thermal
7.
At which point is potential energy greatest
a)
W
b)
X
c)
Y
d)
Z
8.
Which simple machine is this an example of?
a)
wedge
b)
inclined plane
c)
lever
d)
pulley
9.
This image is an example of which simple machine?
a)
inclined plane
b)
screw
c)
wheel and axle
d)
pulley
10.
Which simple machine do these object represent?
a)
pulley
b)
screw
c)
wedge
d)
wheel and axle
11.
If these boys are pulling with the same amount of force. What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
12.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
13.
This device is which simple machine?
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
14.
A ______ opens and closes a circuit.
a)
power source
b)
conductor
c)
switch
d)
output device
15.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
d)
Sunlight
16.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
17.
Which one is a conductor?
a)
wood
b)
iron
c)
plastic spoon
d)
paper
18.
What is the main energy PRODUCED in this photo?
a)
Mechanical
b)
Electrical
c)
Sound
d)
Light
19.
Choose the corrrect sentence.
a)
This circuit will work because it is an open circuit
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
20.
Choose the correct sentence.
a)
This circuit will work because it is an open circuit.
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
21.
Water is a______?
a)
conductor
b)
insulator
22.
What do you use to open and close a circuit?
a)
switch
b)
insulator
c)
conductor
d)
battery
23.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
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