USP_Speed and Velocity

What is a scalar quantity?

• A quantity that shows neither magnitude nor direction

• A quantity that shows both magnitude and direction

• A quantity that shows magnitude only

• A quantity that shows only direction

Which of the following is a scalar quantity?

• Displacement

• Velocity

• Force

• Time

What is the SI unit of speed?

• second

• newton

• kilogram

• metre per second (m/s or ms-1)

What is the formula to calculate speed?

• Speed = Distance * Time

• Speed = Time / Distance

• Speed = Distance + Time

• Speed = Distance / Time

When an object is travelling at constant speed, what is true?

• It is changing direction

• It is accelerating

• It is decelerating

• It is travelling at the same speed

If an object is travelling at a constant speed of 10 m/s, what does this mean?

• It travels 10 m every 1 s

• It travels 10 m every 1 min

• It travels 10 km every 1 hour

• It travels 10 m every 1 hour

What is average speed?

• The rate of change of time

• The distance moved per unit time

• The total distance travelled divided by the total time taken

• The rate of change of displacement

What is the SI unit of average speed?

• newton

• pascal

• kilogram

• metre per second (m/s or ms-1)

What is velocity?

• The rate of change of displacement

• The rate of change of time

• The total distance travelled divided by the total time taken

• The distance moved per unit time

What is the SI unit of velocity?

• metre per second (m/s or ms-1)

• kilogram

• newton

• pascal