Statistics Prelim Exam

What is the primary difference between speed and velocity?

• Speed includes direction, but velocity does not.

• Velocity includes direction, but speed does not.

• They are the same thing.

• Speed is always greater than velocity.

Which of the following describes an object in uniform motion?

• A car stopping at a red light.

• A baby's mobile moving at a constant speed.

• A nurse running to an emergency and slowing down.

• A person walking, then stopping to check directions.

A position-time graph with a straight, horizontal line represents:

• Constant acceleration

• Constant velocity

• An object at rest

• Changing velocity

The slope of a position-time graph represents:

• Acceleration

• Velocity

• Distance

• Time

What does instantaneous velocity measure?

• The total displacement divided by total time

• The velocity at a single moment in time

• The average speed over a long trip

• The total distance covered

Which of the following is equal to 5,000 milliliters?

• 0.5 liters

• 5 liters

• 50 liters

• 500 liters

A patient's weight is measured as 132 pounds. What is the approximate weight in kilograms? (1 lb = 0.45 kg)

• 60 kg

• 90 kg

• 45 kg

• 30 kg

If a syringe delivers 1.5 mL of medicine per injection, how many liters is that?

• 0.0015 L

• 0.015 L

• 0.15 L

• 1.5 L

Convert 72 km/h to m/s.

• 10 m/s

• 20 m/s

• 30 m/s

• 40 m/s

A midwife drives at a constant speed of 60 km/h for 2 hours. How far does she travel?

• 30 km

• 60 km

• 120 km

• 80 km