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WorksheetsEnergy Study Guide
Total questions: 45
Worksheet time: 25mins
At which point is the potential energy the highest?
W
X
Y
Z
At which point is the kinetic energy the highest?
W
X
Y
Z
Gravitational potential energy depends on the _____ and ____ of the object.
mass and velocity
friction and velocity
mass and height
height and velocity
Energy can be ______________ or changed from one type to another.
destroyed
created
transformed
reversed
Two factors that affect kinetic energy are___________ and _______.
time and energy
mass and power
time and velocity
velocity and mass
What is the unit for kinetic energy?
Newton
m/s
Joule
kg x m/s2
What kind of energy is in a battery?
electrical
chemical potential
kinetic
mechanical potential
When a pendulum swings, at which point is the kinetic energy highest?
A
B
C
D
As a pendulum swings from its highest to lowest position, what happens to the kinetic and potential energy?
Both kinetic and potential energy decrease.
The kinetic energy decreases and the potential energy increases.
The kinetic energy increases and the potential energy decreases.
Both kinetic and potential energy increase.
What is the kinetic energy of a soccer ball with a mass of 0.8 kg that has a velocity of 10 m/s?
40 J
4 J
8 J
80 J
How much kinetic energy does a running back have if his mass is 80 kg and he is running at a speed of 8 m/s?
320 J
2560 J
5120 J
640 J
There is a clock at the top of a tower that is 45 m high. The clock has a mass of 20 kg. Calculate the clock's gravitational potential energy.
8100 J
9000 J
900 J
8820 J
What is the mass of an apple hanging 1 m in the tree if it has the gpe of 2.94 J?
2.94 kg
2940 g
0.3 kg
3000g
What is the value we use for gravity on Earth?
9.8 m/s
9.8 m/s/s
10 m/s
98 m/s2
A cheetah can run with a speed of 31 m/s for a short time. If a cheetah with a mass of 47 kg was running at that speed, what would his kinetic energy be?
22,583.5 J
728.5 J
45,167 J
1457 J
A ping pong ball has a mass of 2.45 g. If that ball were hit with a speed of 4 m/s, what would its kinetic energy be?
0.0098 J
9.8 J
0.0196 J
19.6 J
What is the kinetic energy of a 26 kg eagle, flying at an altitude of 65 m at a speed of 19 m/s?
32,110 J
16,055 J
4693 J
247 J
A polar bear has an average mass of 500 kg. If its maximum kinetic energy is 60,500 J, what is its top speed?
121 m/s
15.56 m/s
242 m/s
15,125 m/s
An airplane designed to carry a space shuttle has a top speed of 236 m/s and at that speed its kinetic energy is 9,760,000,000 J. What is its mass?
350,474 kg
87618.5 kg
175,237 kg
41,355,932 kg
What is the gravitational potential energy of an 85 kg mountain climber at the summit of a 6267 m volcano?
5,220,411 J
73.7 J
532,695 J
54,356.6 J
The highest inhabited town in the world is La Paz, with an elevation of 5334 m above sea level. What would the gpe of a person in this town be if their mass was 64 kg?
341,376 J
83.3 J
34.834.3 J
3,345,484.8 J
The world record for pole vaulting is 6.15 m. If the pole vaulter's gpe is 4942 J, what is his mass?
803.6 kg
3,101 kg
82 kg
65 kg
An Olympic high jumper, with a mass of 82 kg, has a maximum gpe of 1970 J. How high was the jump?
201 m
24 m
2.5 m
1615 m
Which of these is an example of a change of kinetic energy into potential energy?
a person parachutes out of a plane
a person skiing down a hill
a person racing to the top of a hill
a car going around a race track
CHOOSE THE BEST ANSWER. Which is the best example of an energy transformation from potential to kinetic energy?
a ball rolling down a ramp
a child jumping out of a swing
a picture hanging on a wall
a book falling off a high shelf
Energy is the ability to do work or cause changes.
True
False
______ energy is a type of potential energy that is stored in links between molecules of food and fuel.
Mechanical
Light
Chemical
Sound
_____ is the flow of thermal energy from one substance to another.
Heat
Light
Sound
Movement
______ energy is energy from the Sun that we can see.
Sound
Thermal
Chemical
Light
Most of the energy we use originally came from:
The sun
The air
The soil
The oceans
What type of heat transfer is happening at "A"
conduction
convection
radiation
What type of heat transfer is happening at "B"?
conduction
convection
radiation
What type of heat transfer is happening at "C"?
conduction
convection
radiation
Heat will always transfer from the ___________ object to the ________ object.
The hottest object to the coolest object.
The coolest object to the hottest object.
The solid object to the liquid object.
The liquid object to the solid object.
