QUIZ CHAPTER 2

1.

Distance is a ______________

• length measured in specific direction

• time taken to complete the journey

• total path taken for the whole journey

• total velocity over total time

Which of the following lines shows the object is moving back?

• B

• C

• D

• A

What is the best way to describe the speed of object C?

• Not Moving

• Slow

• Zero

• Fast

What is happening in this graph from point B to C?

• The object is slowing down.

• The object is staying still.

• The object is going down a hill.

  
  

• The object is returning to its starting location.

John walks 5 km east, and then turns around and walks 8 km west. What is John's displacement?

• 3 km; East

• 13 km; East

• 13 km; West

• 3 km; West

The diagram shows the velocity-time graph of an object. Which acceleration-time graph represents the same motion as the object?

• 
• 
• 
• 

A golf ball accelerates off a tee at 15 m/s², changing its velocity from 0 m/s to 50 m/s down the fairway.

How long did it take the golf ball to accelerate?

• 750 seconds

• 7.5 seconds

• 3.33 seconds

• 33.3 seconds

A car accelerates uniformly from rest at 3.2 m/s².

When the car has traveled a distance of 40 m, its speed will be

• 8 m/s

• 16 m/s

• 256 m/s

• 128 m/s

On a runway, an airplane is moving at constant acceleration for 1500 m.

If it starts from rest and becomes airborne after 10 s, determine its speed during take-off.

• 150 m/s

• 100 m/s

• 300 m/s

• 75 m/s

On a dry road, a car with good tires may be able to brake with a constant deceleration of 4.92 m/s².

How long does such a car initially travelling at 27.2 m/s take to stop?

• -11.06 s

• 11.06 s

• 2.76 s

• 5.53 s