Law of Motion

The equation for acceleration is

• A = ma

• A = f/m

• A=f/a

Tags

NGSS.HS-PS2-1

Acceleration is measured as

• kg

• N

• m/s

• m/s^2

Force is measured as

• kg

• N

• m/s

• m/s^2

Determine the acceleration that results when a 12 N net force is applied to a 3 kg object.

• 4 m/s²

• 6 m/s²

• 12 m/s²

• 36 m/s²

Tags

NGSS.MS-PS2-2

A net force of 15 N is exerted on an encyclopedia to cause it to accelerate at a rate of 5 m/s2Determine the mass of the encyclopedia.

• 0.33 kg

• 2 kg

• 3 kg

• 45 kg

Tags

NGSS.MS-PS2-2

If the mass of an object doubles, then the acceleration is ________ when the force is kept the same.

• doubled

• halved

• kept the same

Tags

NGSS.MS-PS2-2

Which statement is correct when describing how the 2nd law of motion applies to grocery shopping with a cart.

• As you shop, you have to push harder on the cart the more you buy!

• As you shop, you the less you have to push on the cart the more you buy!

Tags

NGSS.MS-PS2-2

True or False. Acceleration of an object is directly proportional to the net force acting on it?

• True

• False

Tags

NGSS.MS-PS2-2

What happens when unbalanced forces act on an object at rest?

• the object remains at rest

• the object begins moving in an unpredictable direction

• the object begins moving in the direction of the net force

• the object begins moving opposite to the direction of net force

Tags

NGSS.MS-PS2-2

What is Newton's 2nd Law?

• 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

Tags

NGSS.MS-PS2-2