Forces Quiz (Ch 2: Lessons 1,2)

What is the net force acting on the block?

• 4 lbs to the right
• 6 lbs to the right
• 14 lbs to the right
• 40 lbs to the right

What will cause an object to move?

• Applied forces
• Balanced forces
• Unbalanced forces
• Friction forces

What makes a rolling ball stop moving?

• gravity
• friction
• a balanced force

If these teams are pulling with the same amount of force, what will happen?

• The team on the right will win.
• They will not move (net force=0).
• The team on the left will win.
• Both teams will fall down.

A force that slows or stops motion when objects rub together.

• Friction
• Push
• Pull
• Magnetism

What is the net force in this picture?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

What is Newton's First Law of Motion?

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction happens

What is the force that resists motion between two surfaces that are touching?

• push/pull
• gravity
• friction
• magnetism

Which of the following is NOT a way to reduce friction of an object?

• Apply a lubricant like grease.
• Roll an object instead of pushing it.
• Rough up the surface with sandpaper.
• Spray cooking oil on it.

As mass increases between objects, gravity

• decreases.
• disappears.
• stays the same.
• increases.