A B C

Which one of Newton's laws are displayed

• 2nd law

• 1st law

• 3rd law

Tags

NGSS.MS-PS2-1

An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe

• 2nd law

• 1st law

• 3rd law

Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?

• car
• bike
• they are equal
• cannot determine using the info provided

The girl on the sled will remain in motion unless

• her motion is changed by magnetic forces.

• she is stopped by an outside force.

• she accelerates at a constant speed.

• the force of friction forcer her to move faster.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

"A body at rest tends to remain at rest, and a body in motion, tends to remain in motion, unless acted upon by an unbalanced force."

This is describing the law of

• forces

• inertia

• velocity

• gravity

The force of an object, with a certain mass accelerating at a certain rate, can be determined by the equation below:

force = mass x acceleration

Which object would have the greatest force?

• a 5-kg object accelerating at 100 m/s

• a 5-kg object accelerating at 20 m/s

• a 20-kg object accelerating at 4 m/s

• a 20-kg object accelerating at 3 m/s

Tags

NGSS.MS-PS2-2

What is happening at segment B?

• acceleration

• deceleration

• constant speed

• no motion/object at rest

Tags

NGSS.MS-PS3-1

A car travels 120 miles in 3 hours. What is the average speed of the car?

• .40 km/s

• 40 mi/hr

• 360 miles

• 40 m/s

• 1 m/s²

• -1 m/s²

• 2 m/s²

• 1m/s

What is the net force acting on the object?

• 20 N Right

• 40 N Right

• 20 N Left

• 40 N Left

Tags

NGSS.MS-PS2-2