Font size
WorksheetsEnergy & Electricity Review
Total questions: 60
Worksheet time: 2hrs 53mins
What charge does a proton have?
positive
negative
neutral
What charge does a neutron have?
positive
negative
neutral
What charge does an electron have?
positive
negative
neutral
What two particles are in the nucleus of an atom?
protons and electrons
electrons and neutrons
protons and neutrons
Never trust an atom because they make up
Nothing
everything
Protons
all matter is made of
If Earth had twice the mass it has now, how would the gravitational force between it and the Sun change?
The gravitational force would be twice as much as it is now.
The gravitational force would be four times as much as it is now.
The gravitational force would be half as much as it is now.
The gravitational force would be the same as it is now.
If two charges attract to each other, then which of the following is true?
Both charges must be positive.
Both charges must be negative
Both charges must be different.
Both charges must be equal in value.
Which of the following might make the spoons repel each other?
Neither A nor B is electrically charged.
Both A and B are negatively charged.
A is positively charged, and B is negatively charged
A is negatively charged, and B is not electrically charged.
Glass, rubber, wood, and plastic are all examples of (a) since electricity cannot pass through them.
When an object gains electrons, what is its charge?
Positive
Negative
Neutral
No charge
When an object loses electrons, what is its charge?
Positive
Negative
Neutral
No charge
Select all that apply: How can you make an electric force STRONGER?
Bring the charged objects closer together
Move the charged objects further away
Increase the amount of charge
Decrease the amount of charge
What eventually happens to objects that are charged with static electricity?
They destroy electrons forever
They transfer electrons to air or as a spark to another object
They transfer neutrons to the air
They create more protons to become neutral
The ability to do work comes from:
Work
Force
Energy
Gravity
Label the oranges with the correct label that says how much Potential Energy they have.
Click on where the rollercoaster has the MOST potential energy.
Which has more Kinetic Energy: A person running 5 m/s or a car driving 5 m/s?
The Car
The Person
Same
Neither
Which position in the picture does Myra have the most Potential energy?
1
2
3
4
The unit of measure for potential and kinetic energy is:
Newton
meter
watt
Joule
Height (distance) and mass determine the amount of ___________ energy in an object.
kinetic
potential
solar
thermal
An object falling from 50m will have _____________ potential energy than an object falling from 30m.
greater
less
equal
lower
The amount of kinetic energy in an object is determined by its:
speed and mass
height and mass
speed and velocity
height and velocity
This type of energy is caused by motion.
kinetic
potential
solar
electrical
Which car has KE = 100 and PE = 0?
A
B
C
D
Which car has KE = 0 and PE = 100?
A
B
C
D
What type of energy is present?
A diver just before she dives off the 30m platform.
potential
kinetic
When you compress a spring, you are storing __________ energy.
sound
elastic
light
chemical
Calculate the gravitational potential energy of the object.
GPE = mgh
mass: 50
gravity: 10
height: 6
5320J
300J
66J
3000J
Calculate the kinetic energy.
KE=21mv2
mass: 200
velocity: 5
2,500J
250J
500,000J
none of the above
Which point represents maximum potential energy?
W
X
Y
Z
Ansley was drying her hair with her new blow dryer while getting ready for school in the morning. According to the law of conservation of energy, if the dryer produced 30 joules of electrical energy and it was converted to sound and heat, how much of the energy will be permanently lost?
(HINT: The joule is a unit for measuring energy.)
15 Joules
0 Joules
30 Joules
10 Joules
Calculate the gravitational potential energy of a 65 kg climber on top of Mount Everest (8.8 km high). (G=9.8m/s2)
6864.3 J
5605.6 J
7206 J
None of the answers are correct
What is the KE of a football which has a mass of 0.8 kg and is kicked at a velocity of 10 m/s?
80 J
3.2 J
160 J
40 J
What is potential energy?
Energy as it appears in nature
The energy as it comes to a stop
The energy by being in motion
Stored energy
Total Mechanical Energy is (a) + (b)
Law of Conservation of Energy states...
Energy can be made
Energy can't be destroyed and cannot be transferred
Energy can't be created or destroyed; only transferred or transformed
Energy can't be created and the total amount of energy changes
In which of the following scenarios would this energy transformation be observed?
chemical → light → heat
Plucking a guitar string
Lighting a match
Turning on a fan
Starting a car
This appliance dries clothes primarily by converting -
electrical energy to heat and mechanical energy
mechanical energy to heat and electrical energy
electrical energy to heat and light
mechanical energy to heat and vaporization
When a lion eats a zebra and then uses the energy from the zebra to run, the lion's body converts =-
chemical energy to mechanical energy
electrical energy to chemical energy
chemical energy to light energy
mechanical energy to chemical energy
What energy transformations occur when a flashlight is turned on?
Chemical energy to electrical energy to light energy
Electrical energy to chemical energy to light energy
Light energy to electrical energy to chemical energy
Electrical energy to light energy to chemical energy
Series
Consecutive
Parallel
Training
Series
Consecutive
Parallel
Training
insulator
conductor
closed circuit
series circuit
parallel circuit
open circuit
A series circuit has ____ path(s) that the electric current can take.
One
Two
Three
Four
The energy of electromagnetic waves is also known as ________ energy.
chemical
thermal
radiant
chemical
