WorksheetsNewton's 3 Laws of Motion Review
Total questions: 55
Worksheet time: 1hrs 16mins
Acceleration ONLY takes place when things speed up.
True
False
Acceleration of an object happens when things ________
slow down
speed up
change direction (turn)
All of the above
How could a jogger accelerate?
speed up, slow down, turn corners
run 10 miles N then run 10 miles back
jog, stop, rest, start again
Because of inertia, a resting object will remain at ________.
rest
a constant speed
school
Because of inertia, a moving object will keep ________.
at rest
moving
in one spot
If an object with a mass of 10 kilogram object accelerates at a rate of 15 m/s^2, how much force was applied to the object?
150 Newtons
15 Newtons
150 kilograms
100 kilograms
What is force?
A push exerted on an object
A push or pull exerted on an object
A pull exerted on an object
The relationship among mass, force, and acceleration is explained by ___.
Newton's third law of motion
Newton's first law of motion
Newton's second law of motion
The units for acceleration are:
Grams/Kilograms
Newtons
m/s2
The units for mass are:
Grams/Kilograms
Newtons
m/s2
The tendency of an object to resist change in motion
Friction
Inertia
Force
What is mass?
the force of an object caused by gravity
the amount of space something takes up
the amount of matter in an object
Force= Mass x Acceleration
Newtons 1st law
Newtons 2nd law
Newtons 3rd law
What is Newton's First Law
F=ma
Every action has an equal and opposite reaction
An object at rest stays at rest, an object in motion stays in motion.
Newtons first law is also known as the law of ______?
Gravity
Mass
Inertia
How fast an object is moving.
Speed
Velocity
Acceleration
The rate of change of velocity which includes an increase in speed, decrease in speed, or change in direction of an object.
Speed
Velocity
Acceleration
Newtons law states that for every action, there is an_________ reaction
unequal and opposite
stronger and opposite
equal and similar
equal and opposite
Force always comes in________
waves
triplets
pairs
Action reaction forces never cancel each other out because
They act on different objects.
They act on the same objects
They do not act on objects.
When the person pushes the ground with their foot, the equal and opposite reaction force is
the ground pushing back on their foot
when they start to move forward
The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?
The rocket is protected from the heat of the exhaust.
Burned fuel can be collected on the ground.
As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.
This allows the rocket to be steered properly.
A book pushes down on a table with a force of 5N, the table..
Pushes back with a force of 5N
Pushes back with a force less than 5N
Pushes back with a forcec greater than 5N
Does nothing. A table has no force.
According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backward because -
the mass of the skateboard is the same as the mass of the person jumping off.
the pull of gravity on the person is the same as on the skateboard, regardless of size.
the air resistance on the person is great and the friction on the skateboard is small.
for the force that sent the person forward, there is an equal force pushing back on the skateboard.
According to Newton’s Third Law, when you lean on a wall, which force is greater?
the wall's force
your force
the force of friction
they are equal
Which of Newton's Laws of Motion does this Newton's cradle demonstrate?
Newton's 1st Law of Motion (interia)
Newton's 2nd Law of Motion (F=m * a)
Newton's 3rd Law of Motion (action-reaction)
Which of the following is an example of Newton’s Third Law:
You jump on a trampoline. It springs you back into the air.
A swimmer pushes against a pool wall to begin swimming a lap.
A rocket’s thrust pushes it out of Earth's atmosphere.
All of the above
The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is this arrangement necessary for a rocket to function properly?
The rocket is protected from the heat of the exhaust.
Burned fuel can be collected on the ground.
As fuel is combusted, the rocket pushes the gases backward and the gases push the rocket forward.
This allows the rocket to be steered properly.
For every action there is an equal and opposite reaction
true
false
if one object A exerts a force on a second object B, then B exerts a force on A, and the two forces are equal in magnitude and opposite in direction
true
false
