Newton's Laws Check in

Which of Newton's Laws best explains what happens in the gif?

• Newton's First Law

• Newton's Second Law

• Newton's Third Law

Newton's Second Law States:

•  $F\ =\ ma$  

• For every action, there is an equal and opposite reation.

• An object at rest remains at rest, unless acted upon by a net force. An object in motion remains in motion, unless acted upon by a net force.

If the man pushes with an equal amount of force, which object will accelerate more?

• Car because it has more mass

• Lawnmower because it has less mass

• Car because it has less mass

• Lawnmower because it has more mass

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

• 20 m/s²

• 0.5 m/s²

• 2 m/s²

• 120 N

Find how much force the man will need to exert to move the car.

• 5000 N

• 50 N

• 20,000 N

• 500 N

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

• 250 N

• 2.5 N

• 25 N

• 15 N

The force of a cart doubles.  What happens to the cart's acceleration?

• It doubles
• It quadruples 
• It halves
• It quarters

A student leaves a pencil on a desk and it stays there until I pick it up. 

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law

A force of 250 N is applied to an object that accelerates at a rate of 5 m/sec². What is the mass of the object?

• 100kg

• 1,250kg

• 50kg

• 5kg