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WorksheetsMotion and Laws of Motion Review
Total questions: 35
Worksheet time: 58mins
Velocity is _?_.
speed and acceleration
constant speed
a frame of reference
speed in a given direction
What is the velocity of a car that traveled a total of 75 kilometers North in 1.5 hours?
112.5 km/hr, North
50 km/hr, North
.833 km/hr, North
40 km/hr, North
Acceleration of an object happens when things _?_.
slow down
go faster
change direction (turn)
All of the above
The combination of all forces action on an object is known as _?_.
force
net force
friction
newton
Whenever there is a net force acting on an object and it causes the object to move, stop moving, or change directions it is known as a(n) _?_.
friction
force
balanced forces
unbalanced forces
Equal forces acting on an object in opposite directions that do not change the object's motion is the definition of which term?
friction
weight
balanced forces
unbalanced forces
The force that two surfaces exert on each other when they rub against each other is _?_.
friction
gravity
weight
force
A crumpled piece of paper hits the ground before a flat sheet of paper, because _?_.
the acceleration of gravity is greater on the crumpled paper.
there is more air resistance against the flat paper.
the crumpled paper is more massive
the crumpled paper is less massive.
The type of friction that occurs when wheels or other round objects rotate over a surface is _?_.
fluid
rolling
sliding
static
The friction that occurs when a liquid or a gas opposes the motion of an object describes _?_.
fluid
rolling
sliding
static
A force that pulls objects toward each other is _?_.
acceleration
friction
gravity
weight
A measure of the gravitational force exerted on an object is _?_.
friction
force
weight
gravity
Forces that have a net force of zero ( the object is still) result in a(n) _?_.
balanced force
unbalanced force
Forces that have a net force that is not zero (object will move) result in a(n) _?_.
balanced force
unbalanced force
According to Newton's Third Law of Motion, when a hammer strikes and exerts a force on a nail, the nail _?_.
disappears into the wood
moves at a constant speed
exerts an equal and opposite force back on the hammer
creates a balanced force
An object of mass 10 kg is accelerated upward at 2 m/s2. What force is required?
20 N
2 N
5 N
0 N
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will _?_.
remain in motion
eventually come to a stop
change its momentum
accelerate
How does Newton’s third law explain how a rocket takes off?
The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
The rocket is at rest until ignition.
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
Acceleration on Earth due to gravity is _?_.
9.8 meters
9.8 seconds
9.8 meters per second
9.8 meters per second squared
Which object would have the greatest acceleration inside of a vacuum?
golf ball
bowling ball
feather
All would have the same acceleration.
