CHAPTER 2 LINEAR KINEMATICS

Changes in our speed, direction or both are called _________.

• distance

• velocity

• acceleration

• displacement

Acceleration is defined as the CHANGE in

• time of motion to another place.

• velocity

• distance

• speed

Acceleration occurs when an object changes its speed or

• direction

• inertia

• force

• mass

If a student rides her skateboard on a straight road and does not speed up or slow down, she is travelling with a

• constant acceleration

• positive acceleration

• constant velocity

• negative acceleration

If you travel 7.5 km and walk for 1.5 h, what is your average speed?

• 5 km/h

• 0.2 km/h

• 15 km/h

• 11.25 km/h

During which interval is the object traveling at a constant velocity?

• B to C

• F to G

• D to E

• it traveling at a constant velocity during all of the intervals shown.

What is occurring on this graph?

• A slowing down in the positive direction

• A positive change in momentum

• An object moving at a constant speed in the positive direction

• A positive net force

Based on the graph, how far does the person travel in the first 5 seconds?

• 2 m

• 0 m

• 10 m

• 5 m

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

• 55km

• 43km

• 32km

• 32m

A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the acceleration?

• A

• B

• C

• D