Newton's Laws

the tendency of an object to resist a change in its motion

• acceleration
• inertia
• mass
• frame of reference

What is the unit of measurement for force?

• AMP
• Seconds
• Newtons
• Miles

What kind(s) of objects have inertia?

• all objects with mass
• only objects at rest
• only objects in motion
• only objects whose motion is being changed

A person not wearing a seatbelt flies through a car window when someone slams on the breaks because the person’s body wants to remain in continuous motion even when the car stops.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A soccer ball accelerates more than a bowling ball when thrown with the same force.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

For every action there is an equal and opposite reaction.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2. Determine the mass of the encyclopedia?

•  m = 3.0 kg
• m = 4.0 kg 
• m = 3.0 ml 
• m = 30.0 g

Determine the accelerations that result when a 12-N net force is applied to a 3-kg object. 

• 3 m/s
• 4 ft/s 
• 13 m/s
• 4 m/s