WorksheetsChanges in Force and Motion TEST Review
Total questions: 26
Worksheet time: 13mins
The illustration shows the forces in Newtons (N) acting on three different blocks. Which boxes will move under these conditions?
Blocks 1 and 2
Blocks 2 and 3
Blocks 1 and 3
Blocks 1,2, and 3
The illustration shows the forces in Newtons (N) acting on each group. Which direction will the groups move under these conditions?
To the right 2N
To the left 2N
To the right 22N
To the left 10N
The illustration shows all the forces in Newtons (N) acting on a box. The sum of all the forces acting on the truck results in a force acting on the truck
to the right with a strength of 40 Newtons.
to the left with a strength of 40 Newtons.
to the right with a strength of 60 Newtons.
to the left with a strength of 60 Newtons
Students are investigating how mass affects the force needed to move an object. They attached a wooden block to a spring scale and placed a 10 g mass on top of the block and pulled it 50 cm across the table.What change(s) to their set-up would result in a larger force reading on the spring scale?
Changing the mass to a larger amount.
Changing the mass to a smaller amount
Pulling the block 10cm across the table
Using a different scale
The nozzle of a rocket is pointed downward so that as fuel is ignited, the exhaust pushes downward. Why is the nozzle located at the bottom of the rocket instead of at the top of the rocket?
The rocket pushes the gases backward and the gases push the rocket forward.
Burned fuel can be collected on the ground.
Reducing the size of the rocket
Pushing down harder on the pump
Which of the following graphs shows how the mass of an object affects the amount of force needed to move it?
B
A
C
The head of a hammer is often made of steel. This makes the head heavy, which helps create a strong force for driving nails. Steel is also strong. The head of a hammer must be strong to resist what force?
The force of the air resistance on the moving hammer
The force of the person using the hammer
The force of gravity pulling down on the hammer
The force of the nail pushing in the opposite direction
What conclusion can be made about the forces acting on the teeter totter?
Balanced
Equal 400 N
Will shift to the left
Will shift to the right
A diagram of forces being applied to a box by four people is illustrated below. If the net force acting on the box is 10 to the right, what is the magnitude of the force applied by the boy pulling to the left?
14L
21R
19R
11L
Newtons third law describes action and reaction forces. A table of four scenarios is provided. Which of the scenarios described in the table show equal and opposite reaction forces?
The rocket and balloon
The rocket and train
The balloon and girl
The train and girl
A property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force.
inertia
reference frame
newton
friction
How much force is required to make a mass of one kilogram go faster at a rate of one meter per second.
newton
kinetic energy
gravity
friction
A system that uses coordinates or background objects to establish position or measure movement of a point in space.
reference frame
direction
potential energy
motion
An object at rest remains at rest and an object in motion maintains its velocity unless it experiences a net force.
Newton's first law
Newton's second law
Newton's third law
Justin dreaming
Which Law of Motion says that force equals mass times acceleration?
Newton's 2nd law
Newton's 3rd law
Newton's 1st law
For every action force, there is a reaction force equal in strength opposite in direction.
Newton's 3rd law
Newton's 4th law
Newton's 2nd law
______ is speed in a given direction.
velocity
speed
reference frame
kinetic energy
What is a change in velocity?
acceleration
force energy
speed
Newton's 4th law
A push or a pull
forces
motion
Newton's 1st law
When forces are in balance, the object is at ______
rest
potential energy
direction
A change in position compared to other objects.
motion
resting
speed
What is the sum of all forces acting on an object
net force
motion
Newton's 3rd Law
newton's
A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?
100 Newtons, same direction
100 Newtons, opposite direction
200 Newtons, same direction
200 Newtons, opposite direction
According to Newton’s Third Law, if someone jumps off a skateboard, the skateboard will roll backwards 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.
the force that sent the person forward, there is an equal force pushing back on the skateboard.
The result when two forces of the same strength (value) act on an object in opposite directions at the same time.
moving
strong force
velocity
balance
Scenario
Mrs. Vengley’ s class won a day at the bowling alley for their good behavior all year. When they arrived, Griffin picked the green ball that weighed 6 lbs, and Amelia picked the yellow ball that weighed 12 lbs. Amelia was having a hard time getting her ball to roll down the lane. Griffin was doing great! He was pushing his ball hard, and it was going straight down the center. He even got a strike twice!
Select a scientific explanation about why Amelia was having a hard time.
Amelia's ball is too lite
Amelia needs to pick a different ball that weighs more than 12 lbs.
Amelia needs to pick a different colored ball that weighs less than 12 lbs.
