Multiple choice 2014

Which graph represents the motion of an object that is accelerating?

• A

• B

• C

• D

The rectangular block shown has a mass of 48g. What is the density of the block?

• A 0.17g/ cm3

• B 0.33g/ cm3

• C 3.0g/ cm3

• D 6.0g/ cm3

The table lists four energy resources. For each resource it states if the energy resource was originally derived from the Sun’s energy. Which row contains an error?

• A

• B

• C

• D

A person wearing wet clothes can feel cold even on a warm day. Why does he feel cold?

• A Water gives out heat as it evaporates.

• B Water takes in heat as it evaporates.

• C Water vapour gives heat out as it condenses.

• D Water vapour takes heat in as it condenses.

A metal wheel has to be fitted to an axle made from the same metal. The axle is larger than the hole in the wheel. Which action could make it possible to fit the axle in the hole?

• A cooling the axle only

• B cooling the axle and cooling the wheel by the same temperature change

• C heating the axle only

• D heating the axle and heating the wheel by the same temperature change

Bread can be cooked by placing it below a heating element. Which process transfers thermal energy from the heating element to the bread?

• A conduction

• B convection

• C evaporation

• D radiation

Which distance on the diagram represents the amplitude of the wave?

• A

• B

• C

• D

Which diagram shows the paths taken by the red light and by the blue light when a beam of white light enters a glass prism?

• 
• 
• 
• 

A short, loud sound is made in front of a tall building. An echo returns to the source of the sound 0.6s later. The speed of sound is 330m/ s. How far away is the building from the source of the sound?

• A 99m

• B 198m

• C 550m

• D 1100m

A student believes that a certain steel bar is a magnet. What shows that the bar is a magnet?

• A The bar attracts a copper rod.

• B The bar is attracted by one end of another magnet.

• C The bar is attracted by both ends of another magnet.

• D The bar is repelled by one end of another magnet.