Understanding Newton's Second Law

What is the term for the force that opposes the motion of an object through a fluid (like air or water)?

• Gravity

• Friction

• Drag

• Tension

Which of the following is an example of Newton's second law of motion?

• A book resting on a table

• A car accelerating when the driver steps on the gas pedal

• A ball rolling down a hill at a constant speed

• A person pushing against a wall without moving it

• 500 N

• 1000 N

• 2000 N

• 4000 N

Tags

NGSS.MS-PS2-2

If a 5 kg object is subjected to a net force of 20 N, what is its acceleration?

Tags

NGSS.MS-PS2-2

A 1500 kg car is moving with a velocity of 20 m/s. If the driver applies the brakes and brings the car to a stop in 5 seconds, what is the average force exerted by the brakes?

• 3000 N

• 6000 N

• 9000 N

• 12000 N

Tags

NGSS.MS-PS2-2