0654_2017__ON_QP_23_Phys

28 A car moves with a constant speed of 15 m / s along a road for 20 s.

After this, the car is 100 m from where it started, measured in a straight line.

Which statement about the car is correct?

• It has travelled a distance of 100 m along the road.

• It has travelled a distance of 300 m along the road.

• Its direction was constant.

• Its velocity was constant.

29.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

30. The pressure P of a fixed mass of gas at constant temperature depends on its volume V.

What is the relationship between P and V ?

• P is directly proportional to V.

• P is directly proportional to V².

• P is inversely proportional to V.

• P is inversely proportional to V².

31 Four blocks are made from different materials. The blocks are heated and the thermal energy of

each block increases by the same amount.

The temperature increase of each block is shown in the diagrams.

Which block has the smallest thermal capacity?

• 
• 
• 
• 

32. 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

33. A water wave travels at a steady speed of 4.0 m / s and passes a stationary boat.

Four wave crests pass the boat every 2.0 seconds.

What is the wavelength of the waves?

• 0.5 m

• 1.0 m

• 2.0 m

• 8.0 m

34. A student uses a converging lens to obtain a magnified, virtual image of an object. The object is

in the position shown in the diagram.

A principal focus of the lens is also shown on each side of the lens.

At which labelled position is the image formed?

• A

• B

• C

• D

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. The diagram represents a wave in air. Molecules are closer together in region P than they are in

region Q.

Which type of wave is represented, and in which direction do the molecules vibrate?

• 
• 
• 
• 

37. The diagram shows a 3.0 Ω resistor connected to a 6.0 V battery.

How much energy is transferred in the 3.0 Ω resistor in 30 seconds?

• 15 J

• 60 J

• 360 J

• 540 J