Grade 7 Unit 10 Measuring Motion

Which is correct?

• speed = distance x time
• speed = speed divided time
• speed = Distance divide time
• Speed = time x speed

A runner races in the 100 meter dash. It takes him 10 seconds to finish. What is his average speed?

• 10 m/s

• 1000 m/s

• 100 seconds

• 10 seconds

How far will a person go if he jogs for 2 hours at a speed of 12 km/hr?

• 6 km

• 0.5 km

• 10 km

• 24 km

Which of the following best describes the motion of the squirrel between 5 s and 8 s? 

• The squirrel's speed increased.
• The squirrel's speed decreased.
• The squirrel's speed did not change.
• The squirrel moved backward.

Tags

NGSS.MS-PS3-1

What is speed?

• how much an object’s position changes
• how far an object moves
• how long an object moves
• how far an object moves in a certain amount of time

Tags

NGSS.MS-PS3-1

What is the object's speed between 0 and 2 seconds?

• 5 miles per hour

• 5 meters per second

• 10 miles per hour

• 10 meters per second

Tags

NGSS.MS-PS3-1

Joanna drives for 400km at an average speed of 80km/h. How long was her journey?

• Joanna's journey was 5hrs long
• Joanna's journey was 10hrs long
• Joanna's journey was 20hrs long
• Joanna's journey was 15hrs long

What is the metric unit for speed?

• h/km

• m/s

• km

• cm³

In a distance vs. time graph, time goes on the

• X-axis

• Y-axis

• Constant speed

• Increasing speed

• Decreasing speed

• Non-uniform speed