Physics 1 Kinematics test

Which of the following is a scalar quantity?

• speed

• velocity

• acceleration

• displacement

Which of the following is a vector quantity?

• 30 m/s

• 9.8 m/s² down

• distance

• speed

A car drives 20 miles north and then 3 miles south. What is the displacement of the car?

• 17 miles north

• 23 miles

• 23 miles north

• 17 miles

What does the letter "a" stand for?

• Speed

• Velocity

• Acceleration

• Time

What are the units for velocity and speed?

• m/s

• m/s2

• s

• m

What is the definition of Free Fall?

• When an object falls with resistance

• When an object goes against gravity

• When an object falls with no air resistance

• When an object launches from the water

Fill in the missing variables: GPE= _____ and KE=_____.

• a, d

• 9.8 m/s, 23 m/s

• 24m, 23 m/s

• mgh, 1/2 mv2

What is the difference between speed and velocity?

• Speed is magnitude and direction

• Velocity is magnitude(speed) and direction

• Velocity includes acceleration

• Speed is velocity and direction

A 200 kg cannon ball and 5 g ping pong ball are dropped from 20 m at the same time. Which objects hits the ground first?

• Ping pong ball

• Cannon ball

• Neither, they float off into space

• Both objects hit the ground at the same time

Total distance divided by total time is

• average speed
• constant speed
• instantaneous speed
• acceleration