NEW
Font size
WorksheetsPhysics Unit Review
Total questions: 11
Worksheet time: 6mins
Which question would enable you to collect data about the strength of a magnetic field?
What happens to a magnet in a fire?
How many nails can a magnet hold?
What is the effect of moving a magnet near a compass?
How many batteries are used in an electromagnet?
Two magnets are attracting each other. One magnet is big and strong; the other is small and weak. The big magnet attracts the small magnet with:
the same force with which the small magnet attracts the big magnet.
a stronger force than which the small magnet attracts the big magnet.
a weaker force than which the small magnet attracts the big magnet.
no force at all.
A rocket in outer space is traveling toward a far-off planet. An astronaut turns on the rocket's engines, which exerts a force on the rocket. There is no gravity or air resistance.
While the engines are on, how will the rocket move?
The rocket will move at a constant speed.
The rocket will move only while the engines are on.
The rocket will move faster and faster until it reaches its maximum speed.
The rocket will move faster and faster as long as the engines are on.
When the astronaut turns off the engines, what will the rocket do?
It will continue moving with a constant speed because no forces are acting on it.
It will continue to increase its speed.
It will steadily slow down until the force from the engines is gone.
It will steadily slow down because no forces are acting on it.
A student pushes on a heavy rock, but it does not move. Why does the rock not move?
The rock is heavier than the student.
There must be another force on the rock, opposing the student's push.
Nothing is moving, so there are no forces acting.
The student is exerting a force on the rock, but the force from the rock is stronger.
If object A feels an attractive force 420 N from object B, what kind of force will object A feel if its mass is doubled?
210N
840N
105N
420N
1,680N
Why is the box sitting on the table not moving?
No forces are acting on the box.
The table pushes up with the same force that gravity pulls down.
Gravity is keeping the box down on the table.
Gravity is pulling down, but the table is in the way.
When the ball is on its way down through point A, what force(s) are acting on it?
Only gravity and air friction are acting on the ball.
Only the force from the person's push is acting on the ball.
There are no forces acting on the ball.
Both gravity and the force from the person's push are acting on the ball.
When the ball is on its way back up through point B, what force(s) are acting on the ball?
There are no forces acting on the ball.
Both gravity and the force from the floor are acting on the ball.
Only the force from the floor is acting on the ball.
Only gravity and air friction are acting on the ball.
What are the two forces acting on the upper magnet?
The magnet's weight and the magnetic force attracting it to the lower magnet.
Two magnetic forces: one attracting it to the lower magnet and another pushing it away from the lower magnet
The magnet's weight and the magnetic force pushing it away from the lower magnet.
The upper magnet's weight and mass.
What is the relation between the force the lower magnet applies to the upper magnet and the force the upper magnet applies to the lower one?
They are equal.
They act in opposite directions.
The get stronger as the magnets get closer to one another.
All of the above.
