Displacement, velocity & acceleration

A scalar quantity has...

• only direction

• magnitude (a number) and direction

• only magnitude (a number)

A vector has...

• magnitude (a number) and direction

• only magnitude (a number)

• only direction

Which of the following options are vectors?

• Displacement

• Acceleration

• Time

• Velocity

Which of the following options are scalars?

• Speed

• Force

• Distance

• Time

The overall change in an object's position is known as...

Why do we not float around on Earth like astronauts do in space?

• magic

• gravity

• heavy shoes

• the sky weighs us down

One equation to calculate the acceleration of an object is...

• $a=v-u$

• $a=\frac{\Delta t}{\Delta s}$

• $\overline{a}=\frac{\Delta\overline{v}}{\Delta\overline{s}}$

• $\overline{a}=\frac{\Delta\overline{v}}{\Delta t}$

When an objects' velocity is increasing, it is...

• decelerating

• accelerating

• not accelerating

• velocity

Acceleration due to gravity is _______  $ms^{-2}$