Newton's 1st and 2nd Law Review

 What is the unit called that measures force?

• weight
• meter
• Newton
• kilogram

Friction is a force that...

• works against motion

• makes things faster

• makes things heavier

• is imaginary

Friction is a force that acts in the ___________ direction of movement.

• friction

• opposite

• same

• west

According to Newton's 2nd Law, the greater the ____ of an object, the more force you will need to move it.

• surface

• force

• mass

Newton's 1st Law states,________________________.

• 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

Why does an truck have more inertia than a bicycle?

• it has more mass

• it has more volume

• it is not as aerodynamic

What is Inertia?

• motion

• An object's resistance to change in motion

• friction

• An object's resistance to motion

Which type of force(s) will cause a change in an object's motion?

• gravity
• zero net force
• balanced forces
• unbalanced forces

What is Newton's 2nd Law?

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion.

• F = ma

• Friction

A 25 kg bike accelerates at 10 m/s². What was the force?

• 250 N

• 2.5 N

• 25 N

• 15 N