Contact VS Noncontact

When two objects are closer to one another, the force of gravity between them ____________.

• Increases

• Decreases

• Stays the same

• Divides by a factor of 100

What are the three NON-CONTACT forces we are studying this unit?

• Gravity, friction, air resistance

• Forces, motion, human body systems

• Friction, electricity, muscular system

• Gravity, electricity, and magnetism

The three examples pictured are of

• Non-contact Forces

• Contact Forces

If each object has the same mass, which pair has the strongest gravitational attraction?

• The first, because it appears to weigh the most.
• The first, because the arrows are thickest.
• The  second, because it has an even balance of weight and distance.
• The first, because the objects are closest together.

What is the net force acting on the box?

• 200 N down

• 200 N up

• 1400 up

• 1400 down

What is the net force acting on the box?

• 200 N down

• 200 N up

• 1400 up

• 1400 down

What is the net force?

• 0 N

• 600 N right

• 600 N left

What is the net force acting on the box?

• 2 N left

• 2 N right

• 8 N up

• 8 N right

When will the gravity between two objects be the LEAST?

• when the masses of both objects is small and the objects are close together

• when the masses of both objects is small and the objects are far apart

• when the masses of both objects is large and the objects are close together

• when the masses of both objects is large and the objects are far apart