Speed and Velocity Review

Stupendous Speed

100

What is the formula for speed?

Speed = Distance / Time

200

How is speed different from velocity?

velocity needs a direction

300

What is the average speed of a cow that walks east 60 meters in 90 seconds? (Remember, the units must be m/s or km/hr)

.7 m/s

400

A porcupine moved toward a pond at a speed of 5 m/s. It took him 8 seconds. What was the distance he traveled?

40 meters

500

What is the speed of an object moving east for 6 seconds at 105.3 m/s?

105.3 m/s

Very Cool Velocity

100

What is the formula for velocity?

Velocity = Distance / Time with a direction

200

What is the velocity of an object that is moving 6 meters in 2 seconds east?

3 m/s east

300

Distance = 20 meters Time = 4 minutes Direction = south What is the velocity of this object?

5 m/s south

400

A pink alien moved south in it's spacecraft 2 km at a rate of 20 m/s. How much time did it take him to do this in seconds?

100s

500

Coach Curry assigns you the 1-mile test. What is your velocity and explain why?

Velocity is 0 because you are starting and ending in the same position.

Let's Calculate

100

A boat travels downstream for 4 hours. What information is needed to calculate the average speed of the boat?

The distance the boat traveled

200

A cyclist travels 30 kilometers in 2 hours. What is their average speed?

15 km/h

300

A car drives 150 kilometers in 2.5 hours. What is its average speed?

60 km/h

400

Leon runs 65 meters in 13 seconds. His sister Lynette runs 60 meters in 15 seconds. Calculate the speed for both siblings. Who ran faster?

Leon is faster. Lynette runs 4 m/s while Leon runs 5 m/s.

500

If a car travels at an average speed of 55 km/h, how long will it take to cover a distance of 220 kilometers? Explain your reasoning.

4 hours. Each hour the car travels 55 km. 55 x 4 = 220 km.

Velocity Pt.2

100

How does speed differ from velocity?

Speed does not include direction, while velocity does

200

For what formula would decimeters/hour east be a possible unit?

velocity

300

Sarah and Mike are racing toy cars in the same direction on a straight track. Sarah's car travels 6 meters in 2 seconds, while Mike's car travels 6 meters in 3 seconds. Based on this data, who has a faster velocity?

Sarah's car has a higher speed and velocity than Mike's car.

400

A cyclist rides along a straight path for 2 hours, covering a distance of 8 kilometers.

Part A: What is the cyclist's speed?

Part B: If the cyclist was traveling east during this journey, what was their velocity?

Part A: 4 km/h

Part B: 4km/h east

500

Dan’s printed map shows the distance between Houston and Miami is 964 miles. The navigation system in Dan’s car says it is 1,187.5 miles from Houston to Miami. Why are the distances different?

A car cannot travel in a straight line from Houston to Miami. The navigation system is showing the distance on the road, not the displacement.