WorksheetsEnergy, Circuits, & Simple Machines
Total questions: 66
Worksheet time: 3hrs 18mins
Name
Class
Date
1.
A flat sloping surface that connects lower and higher elevations. It makes raising objects easier.
a)
wedge
b)
screw
c)
lever
d)
inclined plane
2.
An inclined plane wrapped around a rod forms this simple machine
a)
lever
b)
pulley
c)
screw
d)
wedge
3.
A simple machine that consists a rigid bar that pivot about a fixed point
a)
lever
b)
pulley
c)
wheel and axle
d)
fulcrum
4.
An axe is an example of a
a)
pulley
b)
inclined plane
c)
screw
d)
wedge
5.
A seesaw is an example of a
a)
wedge
b)
lever
c)
inclined plane
d)
pulley
6.
A device that has two or more simple machines working together
a)
fulcrum
b)
pulley
c)
compound (complex) machine
d)
motor
7.
Stairs
a)
wedge
b)
pulley
c)
inclined plane
d)
wheel and axle
8.
Lightbulb
a)
wedge
b)
pulley
c)
incline plane
d)
screw
9.
Which is not a type of simple machine?
a)
spring
b)
screw
c)
pulley
d)
wedge
10.
What type of simple machine is found on the cap of a pickle jar?
a)
lever
b)
inclined plane
c)
pulley
d)
screw
11.
This device
a)
wedge
b)
lever
c)
incline plane
d)
wheel and axle
12.
What type of simple machine is this?
a)
wheel and axle
b)
gear
c)
lever
d)
inclined plane
13.
The fixed point on the lever is called
a)
load
b)
resistance
c)
bar
d)
fulcrum
14.
The transfer of energy that occurs when a force makes an object move is known as
a)
effort
b)
potential
c)
kinetic
d)
work
15.
What do you call a machine made up of two or more simple machines?
a)
complicated machine
b)
compound or complex machine
c)
comprehensive machine
d)
constructive machine
16.
The device used to raise a flag up a flag pole is an example of a
a)
wheel and axle
b)
lever
c)
inclined plane
d)
pulley
17.
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)
change the direction of the applied force
d)
all of the above
18.
Identify this simple machine
a)
Lever
b)
Wheel & Axle
c)
Inclined Plane
d)
Screw
19.
Two examples of a pulley...
a)
knife & axe blade
b)
lightbulb & screw
c)
flagpole hoist & window blinds
d)
catapult & teeter totter
20.
The unit used to measure work is the
a)
Watt
b)
Newton
c)
Joule
d)
meter
21.
A ______________ is a rope or chain wrapped around a wheel.
a)
wedge
b)
lever
c)
pulley
d)
screw
22.
Which of the following is the best example of work being done.
a)
doing homework
b)
lifting a box
c)
pushing a stationary box
d)
holding a box
23.
A drill bit is an example of which machine?
a)
screw
b)
pulley
c)
ramp
d)
wedge
24.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
25.
Work done = Force x _________
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
26.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
27.
In which of these cases is work being done?
a)
A student sleeps
b)
A student pushes a locked door that does not move
c)
a student carries his chair into another room
d)
A student sits on the carpet
28.
If you use a crowbar to get the lid off of a bucket, what simple machine are you using?
a)
Inclined Plane
b)
Pulley
c)
Wheel and Axle
d)
Lever
29.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
30.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
31.
When a soccer ball is on a field, the energy it has just before being kicked is called
a)
kinetic energy
b)
potential energy
c)
mechanical energy
d)
chemical energy
32.
Mechanical energy
a)
energy built up before being in motion
b)
energy released in a chemical reaction
c)
energy of motion
d)
sum of kinetic and potential energy
33.
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
34.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
35.
On a roller coaster, where is maximum kinetic energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
36.
Which energy conversion is taking place when you put gasoline in a car?
a)
thermal -> electrical
b)
mechanical -> electrical
c)
chemical -> mechanical
d)
mechanical -> electromagnetic
37.
what type of energy is stored in a battery?
a)
electrical
b)
chemical
c)
thermal
d)
mechanical
38.
When you eat pizza, Chemical Energy is transferred to _____ Energy.
a)
Solar
b)
Electrical
c)
Mechanical
d)
Chemical
39.
Electrical Energy is transferred to _____ Energy.
a)
Thermal
b)
Solar
c)
Electrical
d)
None
40.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
solar
b)
light
c)
thermal
d)
mechanical
41.
Which items would have this energy transformation: chemical energy -> electrical, light and thermal energy?
a)
turning on a flashlight
b)
nuclear power plant
c)
digesting an apple
d)
tanning bed
42.
How much work is produced when 350 N is used to move a car 5 m?
a)
70 J
b)
1750 J
c)
355 J
d)
175 J
43.
A 5000N block is lifted 10 m. How much work was done?
a)
50000 J
b)
5000 J
c)
500 J
d)
50 J
44.
When a pendulum swings, at which point is potential energy at its greatest
a)
1
b)
2
c)
3
d)
4
45.
What is kinetic energy?
a)
When an object is in motion
b)
When an object is not in motion
c)
all of the above
d)
none of the above
46.
What is potential energy?
a)
When an object is in motion
b)
When an object is not in motion
c)
all of the above
d)
none of the above
47.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
48.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
49.
At which point is potential energy the greatest?
a)
Top of a hill
b)
bottom of a hill
c)
moving down a hill
d)
moving up a hill
50.
What is the kinetic energy of a 4kg shotput thrown with a velocity of 13m/s
a)
676 J
b)
3.25 J
c)
17J
d)
338 J
51.
A golf pro swings his driver which weighs 0.75Kg at a velocity of 60 m/s. Calculate the kinetic energy of the club.
a)
2700 J
b)
16.9 J
c)
1350 J
d)
45 J
52.
Potential energy that depends on height is called
a)
kinetic energy
b)
gravitational potential energy
c)
elastic potential energy
d)
mechanical energy
53.
Energy from a compressed spring would be an example of...
a)
kinetic
b)
elastic
c)
gravitational
d)
chemical
54.
Why is pushing up a barrel up a ramp easier than lifting it up
a)
the reason why is because of fish
b)
the reason is because you are applying less force to push
c)
the reason why because you are using a machine
55.
W=125 J
d=10 m
F=???
d=10 m
F=???
a)
12.5 N
b)
1250 N
c)
0.08 N
d)
135 N
56.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm
57.
What is a circuit with several paths for electricity to flow?
a)
conductor
b)
series circuit
c)
parallel circuit
d)
open circuit
58.
What is a circuit that only has ONE path for electricity to flow?
a)
series circuit
b)
closed circuit
c)
parallel circuit
d)
light bulb
59.
An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —
To complete the circuit, a wire should be placed from —
a)
Point D to Point C
b)
Point B to Point C
c)
Point A to Point D
d)
Point B to Point D
60.
This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -
When the switch is closed the buzzer will sound because -
a)
the switch gives energy to the battery
b)
the buzzer is made of special plastic
c)
the wires are cooled by the surrounding air
d)
electricity can flow in a complete path
61.
this is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
62.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
63.
Which one will still function if one light bulb goes out?
a)
A-Series
b)
B-Parallel
c)
A-Parallel
d)
B-Series
64.
What is a circuit?
a)
A constant flow of electricity
b)
A path that a current can flow along
65.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
66.
If lamp 2 is unscrewed from its holder, what will happen to lamp1?
a)
It will stay lit
b)
It will go out
c)
It will get dimmer
d)
It will dissapear
100 %
