Exam Review: Describing Motion

A cyclist rides her bike at an average speed of 15 km/hr. She cycles for 3 hours. How far does she travel?

s = d/t d = s ᐧ t t = d/s

• 45 km

• 30 km

• 60 km

• 50 km

 A cross-country runner runs 10km in 40 minutes. What is his average speed? Round to the nearest hundredth.

s = d/t d = s ᐧ t t = d/s

• 30 km/min

• 4 km/min

• 400 km/min

• 0.25 km/min

A swimmer completes 20 laps in a 50-meter pool in 30 minutes. What is her average speed?

s = d/t d = s ᐧ t t = d/s

• 2 km/hr

• 2.5 km/hr

• 1.5 km/hr

• 3 km/hr

Tags

NGSS.MS-PS3-1

A high-speed train travels with an average speed of 227 km/hr. The train travels for 2 hours. How far does the train travel?

_____ km/hr

s = d/t d = s ᐧ t t = d/s

Mathematical Equivalence

ON

A softball pitcher throws a ball at 42 meters per second. If the batter is 18 meters from the pitcher, approximately how much time does it take for the ball to reach the batter?

s = d/t d = s ᐧ t t = d/s

_____ seconds

Mathematical Equivalence

ON

A bus travels at an average speed of 60 km/hr and covers a certain distance in 3 hours. How far does the bus travel?

s = d/t d = s ᐧ t t = d/s

_____km

Mathematical Equivalence

ON

A car travels 180 kilometers in 2 hours. What is its average speed?

s = d/t d = s ᐧ t t = d/s

_____km/hr

Mathematical Equivalence

ON

A train takes 4 hours to travel between two cities that are 200 kilometers apart. What is the average speed of the train?

s = d/t d = s ᐧ t t = d/s

_____km/hr

Mathematical Equivalence

ON

What description best matches the graph?

• moving at a constant speed

• going fast, then slowing down

• going slow, then speeding up

• motionless

Tags

NGSS.MS-PS3-5

What description best matches the graph?

• moving at a constant speed

• going fast, then slowing down

• going slow, then speeding up

• motionless

Tags

NGSS.MS-PS3-1