2024 O Level Paper 1 MCQ

A ball is thrown horizontally through the air, close to the Earth's surface. The diagram shows the path followed by the ball and its position on the path at one time. Air resistance can be ignored. What is the direction (indicated by the arrow →) of the acceleration of the ball?

• (arrow left)

• (arrow up)

• (arrow down)

• (arrow right)

A piece of gold has a volume V and a density D. The gravitational field strength is g. Which expression gives the weight of the piece of gold?

• DV

• DV/g

• DVg

• Dg/V

A vertical tube with uniform cross-sectional area 1.0 cm² contains a column of water of length 120 cm. The density of the water is 1.0 g/cm³ and the gravitational field strength is 10 N/kg. What is the pressure due to the water exerted on the base of the tube?

• 0.12 N/cm²

• 1.20 N/cm²

• 120 N/cm²

• 1200 N/cm²

The diagram shows the forces on a soft ball at the instant it makes contact with the ceiling of a sports hall. Which statement about the ball is correct?

• The ball is moving downwards.

• The ball is slowing down.

• The acceleration of the ball is momentarily zero.

• The upward acceleration of the ball is g = 10 m/s².

Which diagram shows the largest resultant clockwise moment about the pivot?

• 5.0 N, 12.0 cm

• 6.0 N, 6.0 cm and 8.0 N

• 3.0 N, 6.0 cm

• 6.0 N, 12.0 cm and 8.0 N

A cyclist rides at a constant speed along a horizontal road. What is the main energy transfer that takes place?

• A chemical potential store to kinetic store

• B chemical potential store to internal store

• C kinetic store to gravitational potential store

• D internal store to kinetic store

A car of mass 2400 kg travels at 30.0 m/s. The car then slows down with a constant deceleration for 30.0 s until it comes to rest. What is the work done to make the car come to rest?

• 1.08 × 10^6 J

• 2.16 × 10^6 J

• 1.08 × 10^7 J

• 2.16 × 10^7 J

A hot-water tank contains water at 65°C. Which thermal processes transfer heat from its outside surface?

• A convection only

• B radiation only

• C conduction and convection

• D conduction and radiation

Springs and ropes can both be used to illustrate wave motion. Which statement is correct?

• Ropes are only suitable for illustrating longitudinal waves.

• Ropes are suitable for illustrating both transverse and longitudinal waves.

• Springs are only suitable for illustrating longitudinal waves.

• Springs are suitable for illustrating both transverse and longitudinal waves.

Sound waves have a speed of 340 m/s in air, 1500 m/s in water and 5000 m/s in steel. Which wave has the highest frequency?

• A sound with a wavelength 2.5 mm in air

• B sound with a wavelength 30 mm in water

• C sound with a wavelength 50 mm in water

• D sound with a wavelength 80 mm in steel