Science 24 Unit D

Tyreese sprinted down the hallway for a science project. He ran a total of 40 meters in 20 seconds. What was his average speed?

• 2 meters per second
• 20 meters per second
• 40 meters per second
• 10 meters for second

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

• 6 km
• 0.5 km
• 10 km
• 24 km

Shona cycles at an average speed of 8km/h. How far has she travelled if she cycles for 4 hours?

• 55km
• 32km
• 43km
• 32miles

A runners races in the 100 meter dash.  It takes her 10 seconds to finish.  What is her average speed?

• 10 m/s
• 1000 m/s
• 100 seconds
• 10 seconds

What does this graph represent?

• Constant Speed
• Acceleration
• Not moving

What is happening at D?

• Stationary
• Accelerating
• Fast steady speed; moving away from the starting position
• Slower steady speed; moving away from the starting position

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 
• Running
• Standing Still 
• Walking Fast

What is the average speed of the person during the first 5 seconds?

• 0 m/s
• 1 m/s 
• 3 m/s
• 6 m/s 

Which of the following is a unit of speed ?

• sec
• mi
• m/s
• min