1D kinematics

A quantity that is ignorant of direction is referred to as a

• vector quantity
• scalar quantity

A quantity that is has magnitude and  direction is referred to as a

• vector quantity
• scalar quantity

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

• True
• False

You run from your house to a friend's house that is 3 km away. You then walk home. The distance you traveled is 6 km. What is your displacement? 

• 6  km
• 0 km

Speed is a __________ quantity and velocity is a __________ quantity.

• scalar, vector
• vector, scalar

An object is NOT accelerating if it is moving

• in a circle
• at constant velocity 
• at increasing speed
• only as influenced by gravity

A car slows down from +32 m/s to +8 m/s in 4 s. The acceleration is 

• 6 m/s/s opposite the motion
• 2m/s/s in the direction of motion
• 8 m/s/s opposite the motion

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

A cheetah travels 75 m in 3 s. What is her velocity over the interval?

• 225 m/s
• 25 m/s 
• 0.04 m/s

Velocity is...

• The rate of change of acceleration

• The rate of change of displacement

• The rate of change of distance

• The rate of change of speed