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WorksheetsForce, Gravity, & Friction Unit Review
Total questions: 35
Worksheet time: 18mins
Any Outside influence that changes the motion of an object
friction
force
gravity
weight
Two kids were fighting over a toy. Mary exerted 15 N left and Bailey exerted 10 N right. Who got the toy?
Mary
Bailey
Neither, they pulled equally
Mass is measured in
Newtons or pounds
Grams or kilograms
Liters or Gallons
Meters or miles
The scientific unit used to measure a force, such as weight
Newtons
Kilograms
Pounds
Ounces
Grams
Mars has more mass than Venus. Which has more gravity?
Mars
Venus
Neither, they are equal
If the moon were to shift closer to the earth, what would happen to its pull on earth?
it would increase
it would decrease
it would stay the same
9.8 m/s2 is the acceleration for falling objects (due to gravity) on...
the moon
Mars
Venus
Earth
The wheels on the bus go round and round...causing _____ friction.
static friction
sliding friction
fluid friction
rolling friction
Row, Row, Row your boat, gently down the stream - using _____ friction.
static friction
sliding friction
fluid friction
rolling friction
You are using _____ friction when you are using car (or bicycle) brakes or sandpaper.
static friction
sliding friction
fluid friction
rolling friction
The strongest type of friction (largest Newton value)
static friction
sliding friction
fluid friction
rolling friction
Why do we put sand on icy sidewalks?
to increase static friction
to increase sliding friction
to prevent sliding friction
80 N of force are needed to slide a box across a room. Zoe exerted 50 N, so Bubba needed to use _______ in order to move the box.
15 N
30 N
80 N
Two dogs are fighting over a rope. One dog is exerting a force of 20 N, what force must the other dog be exerting if the rope is stationary (not moving)?
less than 20 N
20 N
more than 20 N
The amount of matter in an object is its ______
weight
mass
volume
length
The measurement of gravity acting on an object's mass is _____
weight
mass
volume
length
A 60 N object would weigh ________ on the moon than it does on Earth due to lower gravity.
more than
less than
the same as
Adding mass to a box will _____ the amount of friction when sliding the box across the floor.
increase
decrease
not affect
Air resistance is a type of _____ friction.
static
sliding
fluid
rolling
Any object with mass has gravity.
Always true
Sometimes true
Never true
Gravity attracts all objects toward one another.
True
False
It depends
As distance between two objects increases, gravitational pull...
increases
dereases
stays the same
Which of the following never changes no matter where it is in the universe?
An object's weight
An object's mass
An object's force
An object's pounds
A person would weigh less on the moon than on Earth because...
Moon has more mass and therefore more gravity
Moon has more mass and therefore less gravity
Moon has less mass and therefore less gravity
Moon has less mass and therefore more gravity
Two factors affecting the magnitude of the force of gravity between two objects are...
mass and distance
distance and weight
mass and matter
weight and mass
If Earth's mass was cut in half, what would happen to your mass?
increase because gravitational force increases
decrease because gravitational force increases
decrease because gravitational force decreases
nothing, mass is not affected by gravitational force
The gravitational force between two objects ______ as the mass of the objects increases.
increases
decreases
stays the same
An asteroid exerts a 360-N gravitational force on a nearby spacecraft. The 360-N force on the spacecraft is directed
toward the asteroid
toward the sun
away from the asteroid
What states that "every object in the universe attracts every other object"?
Law of Universal Gravitation
My mom
Bill Nye the Science Guy
Inertia
The force of gravity is directly proportional to
mass
distance
weight
volume
The force of gravity is inversely proportional to
mass
distance
weight
volume
The more mass an object has, the faster that object will fall.
True
False
When air resistance is equal to the weight of an object that is falling, the velocity
slowly decreases
rapidly increases
remains constant (stays the same)
none of the answers are correct
When a falling rock has reached its terminal velocity, its acceleration is
zero
positive
negative
Two objects - one with mass m and the other with mass 2m - are released from rest at the SAME HEIGHT. Which object hits the ground first?
Object with mass m
Object with mass 2m
Both objects hit the ground at the same time
Unable to determine with information given
