kinematics Physical science

What two measurements are necessary for calculating speed?

• Mass and time
• Temperature and mass
• Mass and distance
• Distance and time

What is the speed of an object that travels 60 meters in 4 seconds?

• 240 m/s
• 15 m/s
• 0.067 m/s
• 15 mph

What is the basic unit for velocity?

• m/s²
• m
• N
• m/s

Which of the following is NOT a unit for acceleration?

• m/s²
• cm/s²
• km/hr
• km/hr²

An object moving to the right AND slowing down has a rightward acceleration.

• True - it has rightward acceleration
• False - it has leftward acceleration

The acceleration due to gravity on Earth is...

• 6.67 m/s²
• 9.8 m/s²
• 6.67 m/s
• 9.8 m/s

A ball is thrown into the air. At the highest point, the ball has zero velocity and zero acceleration.

• True
• False

A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?

• 24 m/s²
• 18 m/s²
• 16 m/s²
• 16 m/s

A dog runs with an initial speed of 7.5 m/s to a stop in 15 seconds.  What is the dog's acceleration?

• -7.5 m/s
• -7.5 m/s²
• -0.5 m/s²
• 7.5 mi//hr

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