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WorksheetsUnit 1: T2-T3
Total questions: 25
Worksheet time: 19mins
Name
Class
Date
1.
A student drew the diagram below to show the movement of water through a hydroelectric dam.
The student used the diagram to describe changes in the potential and kinetic energy of the water. At which location is the gravitational potential energy of the water the greatest?
The student used the diagram to describe changes in the potential and kinetic energy of the water. At which location is the gravitational potential energy of the water the greatest?
a)
Location W
b)
Location X
c)
Location Y
d)
Location Z
2.
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
3.
What is force?
a)
A push
b)
A pull
c)
A push or a pull
d)
a measure of energy
4.
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.
5.
Work is done when a force moves an object in the _________ of the force that is applied.
a)
direction
b)
position
c)
energy
6.
A person applies a force to a wall.
a)
Work is done because the person uses energy when applying the force
b)
Work is done because the wall heats up at the place where the force is applied
c)
No work is done
7.
An object will continue moving in a straight line unless acted on by an unbalanced force. Which of the following best explains Earth's motion?
a)
There is no unbalanced force acting on earth because space is empty and nothing touches Earth.
b)
The gravitational force pulling Earth toward the sun is equal and opposite to the force pulling the sun toward Earth, so there is no unbalanced force acting on Earth.
c)
The sun moves in an elliptical orbit around Earth, and the sun's gravity pulls Earth along.
d)
Earth moves in an elliptical orbit around the sun because the gravitational force of the sun attracts Earth.
8.
Why do the planets in our solar system stay in orbit?
a)
gravitational attraction from the other planets
b)
electromagnetic attraction from the sun
c)
gravitational attraction from the sun
d)
electromagnetic waves from a black hole
9.
A student used a video camera to record another student dropping a marble through water in a graduated cylinder. The students watched the video in slow motion and made the observations shown below.
During which part or parts of the marble's fall did the marble experience unbalanced forces?
During which part or parts of the marble's fall did the marble experience unbalanced forces?
a)
Part 1 only
b)
Parts 1 and 2 only
c)
Part 3 only
d)
Parts 2 and 3 only
10.
The diagram below shows a hot air balloon rising. Propane gas tanks are seen at the bottom of the balloon.
What energy transformations occur when the propane gas is used to lift the balloon?
What energy transformations occur when the propane gas is used to lift the balloon?
a)
mechanical energy to light to chemical
b)
chemical to mechanical to thermal
c)
thermal to chemical to light
d)
chemical to thermal to mechanical
11.
If you are running a race with no wind, and then wind pushes against you, what will happen to your motion?
a)
Your motion should speed up
b)
Your motion will slow down
c)
Your motion will not be affected by the added force.
12.
Can work occur with no motion?
a)
NO, the object must move for work to be done!!
b)
yes.
13.
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
14.
Which energy transformation occurs in a toaster?
a)
chemical to electric
b)
electric to thermal
c)
kinetic to chemical
d)
thermal to potential
15.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________.
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
16.
The roller coaster cart has the most gravitational potential energy at position-
a)
W
b)
X
c)
Y
d)
Z
17.
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
18.
A hairdryer converts --
a)
electrical energy into chemical
b)
electrical energy into thermal
c)
chemical energy into mechanical
d)
thermal energy into mechanical
19.
What force holds the planets in motion around the sun?
a)
Magnetic
b)
Electrical
c)
Gravitational
d)
Air Resistance
20.
What type of force is shown in the picture?
a)
The Cat force
b)
Star Wars Force
c)
Unbalanced force
d)
Balanced force
21.
A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
22.
What kind of energy?
a)
Thermal
b)
Electrical
c)
Mechanical
d)
Radiant
23.
Which situation is work not done?
a)
lifting a 20 pound box off the floor
b)
holding a 20 pound box above the floor
c)
sliding a 20 pound box across the floor
d)
sliding a 20 pound box up an inclined plane
24.
Which is doing work?
a)
pushing a wall
b)
holding a box
c)
picking up a pencil
d)
sitting in a chair
25.
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
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