Force and Motion Test Review

Front

Why should a bakery delivery van driver be extra careful when making stops and turns according to Newton's laws?

Back

Law of Inertia

Front

A skater pushes off a wall and skates backward for a few meters before stopping. Which statement best describes an action-reaction force pair in this situation?

Back

The wall pushes on the skater when the skater pushes on the wall.

Tags

NGSS.MS-PS2-1

Front

A duck swimming in a stream pushes against the water with 20 Newtons of force, while the water exerts 15 Newtons of resistant force against the duck. What is the resulting motion of the duck?

Back

The duck will continue moving in its current direction.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

A roller coaster containing three cars is accelerating at 10 m/s before it comes to an abrupt stop at the end of the ride. The mass of each car is 300 kg. How much force was exerted on the roller coaster to bring it to a stop?

Back

9000 N

Tags

NGSS.MS-PS2-2

Front

A mother and daughter press their hands together and then push apart while ice skating. Immediately after they push away from each other, how does the motion of the mother and daughter change?

Back

Both move backward, but the daughter moves with a greater acceleration since she has less mass.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Front

A block is pulled 0.90 m to the right in 2.5 s. What is the block's average speed to the nearest hundredth of a m/s?

Back

0.36 m/s

Tags

NGSS.MS-PS3-1

Front

A group of four students is participating in a marble race. Each marble has a different mass and the same force is applied to each marble. Which law best describes this experiment?

Back

Law of Force and Acceleration

Tags

NGSS.MS-PS2-2

Front

A bus travels 20 km in 30 minutes. What is the average speed of the bus in km/hr?

Back

40 km/hr

Front

Force applied to a 0.4 kg soccer ball with acceleration 2,550 m/s².

Back

1,020.0 N

Tags

NGSS.MS-PS2-2

Front

A car moves at 70 km/hr due north, then changes direction to north-east at the same speed. What happens to its speed and velocity?

Back

The velocity of the car changes, but the speed stays the same.