A. Space, time and motion: 256 IB Physics HL practice questions

A ball is thrown with velocity $u$ at an angle of $55°$ above the horizontal. Which of the following is the magnitude of the horizontal component of velocity?

A cyclist accelerates in a straight line. At one instant, when the cyclist is exerting a forward force of 40 N, the air resistance acting on the cyclist is 10 N.

What is the rate of change of momentum of the cyclist at this instant?[1]

Which of the following is a fundamental SI unit?

A student of weight 600 N climbs a vertical ladder 6.0 m tall in a time of 8.0 s. What is the power developed by the student against gravity?

Which of the following is necessary for an object to be in translational equilibrium?[1]

According to the Heisenberg uncertainty principle the quantity paired with momentum is

What is the definition of the SI unit for a force?

Which quantity has the same units as those for energy stored per unit volume?

A toy car accelerates from rest down an inclined track at $2.0 \text{ m s}^{-2}$. What is the speed of the car after $3.0 \text{ s}$?

The mass of an elephant is $10^4$ kg. The mass of a mouse is $10^{-2}$ kg. What is the ratio $$\frac{\text{mass of the elephant}}{\text{mass of the mouse}}?$$

A car has an initial speed of $16 \, \text{ms}^{-1}$. It decelerates at $4.0 \, \text{ms}^{-2}$ until it stops. What is the distance travelled by the car?[1]

Which of the following is equivalent to the joule?

Which of the following is the condition for a body to be in translational equilibrium?

A person lifts a total mass of 20 kg through a vertical distance of 0.60 m. The person repeats the lift $n$ times to transfer a total energy of $6.0 \times 10^4$ J.

What is $n$?

Light of frequency $f$ is incident on a metal surface. The work function of the metal is $\phi$. Which of the following is the maximum kinetic energy of the electrons emitted from the surface?