Y9 - Unit 11 Compound Measures

What is the equation to calculate speed?

• speed = distance/time
• speed = time/distance
• speed = time x distance 
• speed = speed/time 

Which of the following is a unit of speed?

• km/hr
• hr
• km
• sec

What is the average speed of the ball if it falls 40 meters 20 seconds?

• A.  20 m/s
• B.  10 m/s
• C.  0.5 m/s
• D.  2 m/s 

Soccer ball A goes 15 feet in 3 seconds, and ball B goes 12 feet in 2 seconds. Which ball moved the fastest?

• Soccer ball A
• Soccer ball B
• Their speeds are equal.

What does this graph represent?

• Constant Speed
• Acceleration
• Decceleration
• Not moving

According to the graph how far does the person travel in the first 5 seconds?

• 2 m
• 10 m
• 0 m
• 5 m

What is the person doing from 5 seconds to 10 seconds?

• Walking at a constant speed
• Running fast
• Not moving
• Walking slow

On a distance vs. time graph, the steeper the slope _____

• the slower the speed
• the faster the speed
• less acceleration
• greater decleration

What is this object doing?

• moving at a constant speed away from start and then stops
• increasing speed and then stops
• decreasing speed and then constant speed
• moving at a constant speed away from start and then constant speed

Calculate the speed of the object in the first 5 seconds.

• 1 m/sec
• 2 m/sec
• 3 m/sec
• 6 m/sec