WorksheetsPhysical Science Energy
Total questions: 27
Worksheet time: 23mins
Name
Class
Date
1.
A 40 newton object is released from a height of 10 m. Just before it hits the ground, its kinetic energy, in joules is?
a)
a. 400
b)
b. 3920
c)
c. 2800
d)
d. 4000
2.
Work done = Force x blank?
a)
a. distance
b)
b. acceleration
c)
c. velocity
d)
d. speed
3.
Which form of energy does the flowing water possess?
a)
a. gravitational energy
b)
b. potential energy
c)
c. electrical energy
d)
d. kinetic energy
4.
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
5.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
6.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
7.
What kind of energy is in gasoline in a car tank (car is not on)?
a)
Potential
b)
Kinetic
8.
What kind of energy is in basketball passing through the hoop?
a)
Potential
b)
Kinetic
9.
What kind of energy is in wound up music box that is closed?
a)
Potential
b)
Kinetic
10.
What kind of energy is in flowerpot sitting on a windowsill?
a)
Potential
b)
Kinetic
11.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
12.
Energy can not be created or destroyed, only converted from one form to another.
a)
true
b)
false
13.
A cell phone battery dies. It gets plugged into an electrical outlet to recharge. Which of the following energy transformations occur during the charging?
a)
mechanical to chemical
b)
electrical to solar
c)
chemical to light
d)
electrical to chemical
14.
Tarzan is swinging through the jungle looking for Jane. He is constantly moving back and forth..his kinetic energy is being changed to
a)
electrical
b)
chemical
c)
potential
d)
nuclear
15.
Which form of energy is produced by the splitting of the nucleus of an atom?
a)
solar
b)
nuclear
c)
chemical
d)
none
16.
It takes 20 N of force to move a box a distance of 10 m. How much work is done on the box in Joules?
a)
200 J
b)
20.0J
c)
100 J
d)
10 J
17.
All of the following describe situations in which work is done by an organism EXCEPT for which situation?
a)
A bird carries a worm to it's nest
b)
A squirrel hides a nut in a tree
c)
Ants bring crumbs into their homes
d)
Leaves decompose on the forest floor
18.
Energy causes ___________ to occur.
a)
change
b)
motion
c)
age
19.
What is the ability to do work?
a)
Energy
b)
Strength
c)
Force
d)
Energy forms
20.
A old man does a job slowly, and the same job is done by a young man quickly. Both jobs require the same amount of _____, but different amounts of _____.
a)
work, energy
b)
power, work
c)
work, power
d)
force, work
21.
During energy transformations, energy is never ___.
a)
released as heat
b)
used to increase an object's potential energy
c)
completely transformed
d)
created or destroyed
22.
Power is:
a)
How fast work is done.
b)
A force applied through a distance.
c)
Work out divided by work in multiplied by 100.
d)
Everything.
23.
Which of these people does the most work?
a)
Someone applies a force of 10 newtons over 10 meters
b)
Someone applies a force of 5 newtons over 10 meters
c)
Someone applies a force of 10 newtons over 5 meters
d)
Someone applies a force of 20 newtons over 10 meters
24.
Which of these people has the most power?
a)
Someone does 10 joules of work in 5 seconds
b)
Someone does 10 joules of work in 2 seconds
c)
Someone does 10 joules of work in 3 seconds
d)
Someone does 10 joules of work in 1 seconds
25.
A horse and a donkey both carry a 100 lb bale of hay across the field. Which one does more work?
a)
The Horse
b)
The Donkey
c)
Both
26.
A horse and a donkey both carry a 100 lb bale across the field. The horse does the work in an hour while the donkey does it in 30 minutes. Which one is more powerful?
a)
The Horse
b)
The Donkey
c)
Both
d)
Neither
27.
An arrow is drawn back so that 50 Joules of potential energy is stored in the stretched bow and string. When released, the arrow will have a kinetic energy of ____ Joules.
a)
a. 50
b)
b. more than 50
c)
c. less than 50
100 %
