Movement and Forces

What is speed considered as?

• A measure of displacement

• A unit of direction

• A scalar quantity

• A vector quantity

What does velocity require in addition to magnitude?

• Acceleration

• Distance

• Direction

• Time

Which of the following is a scalar quantity?

• Force

• Distance

• Velocity

• Displacement

How is speed calculated?

• Force divided by mass

• Time divided by distance

• Displacement divided by time

• Distance divided by time

What is the unit of speed?

• Miles per hour

• Kilometers per hour

• Meters per second

• Meters

What symbol is used to represent displacement in the velocity equation?

• t

• d

• s

• v

What can a negative velocity indicate?

• Deceleration

• Acceleration

• A decrease in speed

• Going backwards

What is the average speed of a person walking in meters per second?

• 25

• 1.5

• 3

• 6

What changes the speed of sound waves?

• The time of day

• The direction they travel

• The distance they travel

• The medium they travel through

What is the speed of sound waves in air in meters per second?

• 55

• 250

• 1000

• 330