Semester 2 Exam Review 1

What is the name of the force that pulls all objects towards the Earth?

• Gravity

• Friction

• Balanced forces

• Magnetic forces

The force that two surfaces exert on each other when they rub against each other is called _________.

• Magnetism

• Gravity

• Friction

• Net force

When balanced forces are acting on the object ____________________.

• The object will move

• There is not a change in motion

• The object will move very fast

• There is change in motion

Which of the following is the best description of what is happening in the picture shown?

• There will be movement to the right

• There forces are balanced

• There will be movement to the left

• The forces are not balanced

What is the force that is causing the sky diver to slow down after their parachute is launched?

• Air resistance

• Gravity

• Applied force

• Tension

This image shows an unbalanced force.

• No

• Yes

Magnetic forces include ____________ and ____________.

• push and pull

• attract and repel

• north and south

• left and right

How do two magnets repel each other?

• Like poles are facing each other

• Unlike poles are facing each other

• Magnets cannot repel each other

• Magnets cannot be repelled and attracted

What happens when the unlike poles of two magnets face each other?

• They will repel each other

• They will create a geomagnetic reversal

• They will attract each other

• Nothing happens

What part of a bar magnet is the strongest?

• The middle

• The poles

• The sides

• The whole part