WorksheetsPhysical Science Unit 3- Application of Forces Test Review
Total questions: 27
Worksheet time: 16mins
What is the best definition of vectors?
quantities described by both magnitude and direction
quantities described by both velocity and acceleration
quantities described by both force and gravity
quantities described by both speed and movement
What is velocity, because it describes both speed and direction?
a magnitude
the same as acceleration
a vector
a force arrow
What happens to objects on the moon because it has less mass than Earth?
They fall faster.
They fall slower.
They don’t fall.
They fall at the same rate as they do on Earth.
What best describes gravity?
a fundamental force
a molecular pull
a description of mass
a kind of acceleration
What determines gravitational pull?
mass
acceleration
volume
the sun
Which force keeps the planets in orbit?
friction
gravity
mass
kinetics
Which force causes acceleration?
friction
gravity
velocity
energy
What happens to an object's gravitational pull if it's mass increases?
It decreases.
It increases.
It stays the same.
What does the moon’s gravity do?
pulls back on the Earth
pushes the moon away from the Earth
can only pull on smaller objects such as asteroids but has no effect on the Earth
doesn´t affect anything
Which force causes an object to free fall?
friction
fluid forces
wind
gravity
A 500 g ball and a 200 g ball are dropped from a tower. Both balls are the same size and there is no air resistance.
When do they hit the ground?
The 500 g mass hits the ground first.
The 200 g mass hits the ground first.
They both hit the ground at the same time.
Which type of arrow is being shown if viewing a physics diagram and there is a soccer ball on the grass with an arrow that shows BOTH the speed and direction of the ball?
a vector
a force arrow
a speed arrow
an acceleration arrow
What does a sled experience if it is dragged across the ground?
rolling friction
static friction
kinetic friction
cohesive friction
Which type of friction keeps a pile of rocks from falling apart?
rolling friction
static friction
kinetic friction
cohesive friction
•When you push a box across the floor, what does the box experience?
Fluid Friction
Static Friction
Kinetic Friction
All of the above
•A 1,000 g ball and a 100 g ball are dropped from a tower. Both balls are the same size and there is no air resistance. Which one hits the ground first?
The heavier ball hits the ground first.
They hit at the same time.
The lighter ball hits first.
The balls are dropped on opposite day and fall upwards.
Which of the following is a vector?
Velocity
Mass
Speed
Weight
•The moon has less mass than the earth, so what happens to objects falling on the moon?
Objects would float.
Objects would fall faster than on Earth.
Objects would fall more slowly than on Earth.
Objects would spin when falling on the moon.
•What is the force of attraction between all masses in the universe; a fundamental force?
Nuclear force
Dark force
Force of nature
Gravity
What does the force of gravity on an object depend on?
molecules
the object´s mass
charged particles
compounds
What will a bowling ball that is standing still on a table do?
It will start to move on its own and then fall off.
It will not move unless acted on by another force.
It will remain still because it has too much inertia to move.
It will accelerate on its own if left alone.
What does force equal?
F=ma mass times acceleration
mass times velocity F=mv
F=td distance divided by time
Which statement best defines a universal law?
It is in effect at all times.
It is in effect some of the time.
It operates only under specific conditions.
It changes over time.
What is bounce height in an experiment where a ball is dropped, and it is noted how high it bounces?
control
independent variable
dependent variable
constant
