0654_2017__ON_QP_13_Phys

28. A car starts a short journey on a busy road. It travels 200 m in 1.0 minute, then stops for

2.0 minutes. Finally it travels 1300 m in a further 2.0 minutes.

What is the average speed of the car during the journey?

• 1.1 m / s

• 1.8 m / s

• 5.0 m / s

• 300 m / s

29. The diagram shows a solid rectangular block made of material of density 2.0 g / cm³.

What is the mass of the block?

• 2.0 g

• 6.0 g

• 14 g

• 24 g

30. A worker carries bricks up a ladder.

The following quantities are known.

● the height the bricks are lifted up

● the time taken for the worker to lift the bricks

● the volume of the bricks

● the weight of the bricks

Which quantities are needed to calculate the useful power produced by the worker as he carries

the bricks up the ladder?

• height, time and volume

• height, time and weight

• height, volume and weight

• time, volume and weight

31. Which statement about gas molecules is not correct?

• Increasing the temperature decreases the pressure of the gas at constant volume.

• Increasing the temperature makes the molecules move faster.

• Molecules of a gas are in constant random motion.

• The pressure of the gas is caused by the collision of molecules with the container.

32. Which two processes both require an input of energy?

• boiling and condensation

• boiling and melting

• condensation and solidification

• melting and solidification

33. One type of double glazing consists of two panes of glass separated by a vacuum.

Which methods of energy transfer are prevented by the vacuum?

• conduction and convection only

• conduction and radiation only

• convection and radiation only

• conduction, convection and radiation

34. The diagrams represent a ray of light reflected by a plane mirror.

Which diagram shows possible values for two angles?

• 
• 
• 
• 

35. Which radiations are included in the electromagnetic spectrum?

• α-particle radiation and β-particle radiation

• α-particle radiation and γ-rays

• β-particle radiation and infra-red radiation

• γ-rays and infra-red radiation

36. A loudspeaker on a boat produces a pulse of sound in the sea. The pulse is reflected back to the

boat by the sea bed.

The echo of the pulse is received back at the boat 3.0 s after it is produced. The depth of the sea

under the boat is 2250 m.

From this information, what is the speed of sound in the sea water?

• 330 m / s

• 750 m / s

• 1500 m / s

• 6750 m / s

37. A student carries out four tests with a magnet.

Which result shown is not correct?

• 
• 
• 
•