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WorksheetsChapter 9 Review
Total questions: 23
Worksheet time: 11mins
In physical science, what is a Push or Pull called?
acceleration
force
inertia
motion
What is the force that pulls falling objects toward Earth?
acceleration
magnetism
gravity
electricity
What is the amount of matter in an object called?
inertia
balance
force
mass
What is the force that one surface exerts on another when two surfaces rub against each other?
friction
acceleration
inertia
gravity
The Law of Universal Gravitation states that any 2 objects in the universe that have mass, without exception do what?
combine to provide a balanced force
create friction
attract each other
repel each other
How much would an object weigh on the moon compared to its weight on Earth?
The weight would be the same
twice its Earth weight
one sixth (1/6) of its Earth weight
one quarter (1/4) of its Earth weight
What 2 factors affect the gravitational attraction between two objects? (Select 2 answers)
push
mass
pull
distance
Which of the following is an example of a contact force?
electrical force
magnetic force
normal force
gravitational force
Which of the following is an example of a force that acts at a distance?
applied force
normal force
gravitational force
friction
"Pushing open a door" is an example of which type of force?
normal force
applied force
gravitational force
force acting at a distance
"Earth pushing up on your feet when you stand on the ground" is an example of which type of force?
normal force
applied force
gravitational force
force acting at a distance
What is the overall force on an object when all the individual forces acting on it are added together?
balanced force
unbalanced force
net force
frictional force
What happens when two forces act in the same direction
They cancel each other out
The stronger force prevails
Their strengths are added
Their strengths are subtracted
An object's motion will NOT change when the forces acting on it are ________________________.
balanced
unbalanced
equal to a non-zero net force
accelerating
A dog pulls its dog leash 30 N <---- while the owner pulls the leash 20 N --->. What is the net force?
50 N <-----
10 N <---
30 N <----
0 N
What is the formula for Newton's Second Law of Motion?
Gravitational Potential Energy = Weight x Height
Kinetic Energy = 1/2 x Mass x Speed2
Force = Mass x Acceleration
Force = Mass x Distance
A 120 N net force acts on a 40 kg car. What is the acceleration of the car?
4800 m/s2
160 m/s2
80 m/s2
3 m/s2
A 4 kg cat accelerates at a rate of 3 m/s2. What is the net force acting on the cat?
1 N
1.33 N
7 N
12 N
What does Newton's Third Law of Motion state?
An object at rest stays at rest until a non-zero force acts on it.
An object in motion will stay in motion until a non-zero force acts on it.
For every action, there is an equal but opposite reaction.
Force = Mass x Acceleration
What is resistance to change in motion called?
net force
friction
gravity
inertia
What is Newton's First Law of Motion is also known as?
Law of Acceleration
Law of Inertia
Law of Physics
Law of Equal and Opposite Reactions
Which 2 of the following factors affect the force of friction? (Select 2 answers)
types of surfaces
how long the surfaces are rubbed together
how hard the surfaces are rubbed together
mass and distance
What changes when the sum of all the forces acting on an object is unbalanced?
net force
total force
object's motion
friction
