Type of Forces

What factors affect the strength of gravitational force between two objects?

• Temperature and distance between them

• Mass of the objects and distance between them

• Speed and mass of the objects

• Shape and size of the objects

What are the two main forces acting on a ball rolling on grass?

• Gravity and heat

• Magnetic force and gravity

• Friction and magnetic force

• Gravity and friction

What happens when you rub your hands together?

• Friction generates heat, warming them up

• Gravity pulls them together

• Magnetic forces repel them

• They become electrically charged

What is the role of friction when a ball rolls on grass?

• It has no effect on the ball's motion

• It speeds up the ball's motion

• It opposes the ball's motion, slowing it down

• It pulls the ball downward

What type of force can pull on a metal paperclip without touching it?

 

• magnetic foce

• Electrical force

• Gravitational Force

• Friction

Does gravity repel or attract objects to each other?

• repel

• attract

Do all objects with mass have gravitational force?

• Yes

• No