A. Space, time and motion: 289 IB Physics SL practice questions

The resistive force $F$ that acts on an object moving through a fluid at speed $v$ is given by $F = kv$ where $k$ is a constant. What is the unit of $k$?[1]

Which quantity has the fundamental SI units of $\mathrm{kg \, s^{-3}}$?

A body moves with uniform speed around a circle of radius $r$. The period of the motion is $T$. What is the speed of the body?

A ball is tossed vertically upwards with a speed of 5.0 m s$^{-1}$. After how many seconds will the ball return to its initial position?

A person walks 40 m due west and then 30 m due north. The total walking time is 100 s. What are the average speed and the magnitude of the average velocity of the person?

In an inelastic collision

Which of the following lists three vector quantities?

What is the unit of power expressed in fundamental SI units?

An ice-hockey puck is slid along ice in a straight line. The puck travels at a steady speed of $20 \text{ m s}^{-1}$ and experiences no frictional force. How far does the puck travel in $2.5 \text{ s}$?

A block of mass 2.0 kg accelerates from a speed of 15 $\text{m s}^{-1}$ to a speed of 20 $\text{m s}^{-1}$ without changing its direction.

What impulse acts on the block?[1]

Which of the following lists only two vector quantities?[1]

Which of the formulae represents Newton's second law?

What is the correct SI unit for momentum?

Which of the following expresses the watt in terms of fundamental units?

A truck has an initial speed of $20 \text{ m s}^{-1}$. It decelerates at $4.0 \text{ m s}^{-2}$. What is the distance taken by the truck to stop?[1]