Kinematics fun time.

The correct equation to calculate speed is

• distance/time
• time/distance
• distance x time
• distance/time²

How do you calculate average speed?

• divide total time by total distance
• multiply total time by total distance
• divide total distance by total time
• subtract total time from total distance

Alan ran from his house to shop that is 1.5 km away to buy tidbits. He then walk 1.5 km back home. What is his total distance and total displacement? 

• distance = 1.5 km

  displacement = 1.5 km

• distance = 3 km

  displacement = 0 km

• distance = 1.5 km

  displacement = 3 km

• distance = 3 km

  displacement = 1.5 km

Answer explanation

distance is the total length travelled.

displacement is the length between start point and end point.

What is the formula to calculate velocity?

• 0 m/s

• 3 m/s

• 6 m/s

• 9 m/s

When an object starts from rest, what is its original velocity?

• Depends on the problem

• 0

• Always positive

• Always negative

What is the correct unit for acceleration in kinematics?

• m/s

• m/min²

• m/s/t

• m/s²

A golf ball starts with a speed of 2 m/s and slows at a constant rate of 0.5 m/s², what is its velocity after 2 s?

• 0 m/s
• 0.5 m/s
• 1 m/s
• 1.5 m/s

An airplane accelerates down a runway at 3.20 m/s/s
for 8 s until it finally lifts off the ground.
Determine the velocity at take-off.

• 0.4 m/s
• 25.6 m/s
• 2.5 m/s

An object can be moving for 10 seconds and still have zero displacement.

• True
• False