Descriptors of Motion

Acceleration is defined as the change in ______.

• velocity of an object

• distance divided by time

• velocity divided by the time interval

• time it takes to move from one speed to another

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Descriptors of Motion

Which of the following is a vector quantity?

• 10m

• 60 kph

• 100m/sec

• 100 kph west

Which of the following represents acceleration?

• 7m/s²

• 8m

• 15m

• 20m/s

Which of the following represents speed?

• 2m/s²

• 4s

• 6m

• 8m/s

A person travels 10 meters North, 5 meters East, and 10 meters South. What is the total distance?

• 10m

• 15m

• 20m

• 25m

A bus travels down a straight highway and goes from 0 to 10m/s in 5 seconds.  What is its acceleration?

• 2m/s²

• 3m/s²

• 4m/s²

• 5m/s²

It refers to the length of the entire path that the object travelled.

• displacement

• distance

• speed

• velocity

It is defined as distance travelled divided by the time of travel.

• displacement

• distance

• speed

• velocity

You can determine whether an object moves by comparing its position to that of a fixed point.

• motion

• reference

• reference point

• speed

An object can accelerate while moving at constant speed. Which situation illustrates this?

• A roller coaster making a fast dive

• A bus going uphill at constant speed.

• A bump car going in circles at constant speed.

• A car moving down a straight highway at constant speed.