Force, Motion & Energy Review

A student is investigating how the length of a ramp affects the speed of a toy car. She sets up a ramp that is 2 meters long and uses a stopwatch to measure the time it takes for the toy car to reach the bottom. What would be the average speed of each trial?

The results are recorded in the table below:

Length of Ramp Time

2 meters -- 3 seconds

1 meter -- 5 seconds

• 0.67 m/s for 2m,

  0.2 m/s for 1m

• 1 m/s for 2 m, 0.2 m/s for 1 m

• 2 m/s for 2 m, 0.5 m/s for 1 m

• 3 m/s for 2 m,

  1 m/s for 1 m

Tags

NGSS.MS-PS3-1

A car travels 300 miles in 5 hours. What is the average speed of the car?

• 50 miles per hour

• 55 miles per hour

• 60 miles per hour

• 65 miles per hour

A car travels 60 miles in 1 hour. How many miles will it travel in 4 hours?

• 180 miles

• 200 miles

• 240 miles

• 300 miles

How does surface type affect the speed of a ball rolling down a 1 m ramp?

Surface Time

Smooth 1.5 s

Rough 3 s

• 0.67 m/s on smooth,

  0.33 m/s on rough; smooth is faster.

• 0.5 m/s for both; surface doesn't matter.

• 1 m/s on smooth,

  0.5 m/s on rough; rough is faster.

• 0.67 m/s for both; speed is the same.

Tags

NGSS.MS-PS2-2

Sarah wanted to calculate the duration of her 450-mile road trip. Her car weighs 6,000 lbs, and she averaged 75 miles per hour. Using this information, how long did Sarah’s trip take?

• 5 hours

• 600 Lbs

• 75 hours

• 6 hours

Sebastian is cycling to a nearby town 240 miles away. He’s carrying a backpack that weighs 15 lbs, and he maintained an average speed of 40 miles per hour. How long did it take him to reach his destination?

• 4 hours

• 7 days

• 6 hours

• 5.5 hours

Tags

NGSS.MS-PS3-1

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

Tags

NGSS.MS-PS3-1

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Segment A-B The bus is _________________.

• at rest

• returning (to original position)

• moving forward

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

What does this graph represent?

• Constant speed
• Acceleration
• Not moving

Tags

NGSS.MS-PS3-1