5148/01 Revision 1

A new electric saw has the following information displayed.

What is the power rating of the electric saw?

• 1700 W

• 460 revolutions per minute

• 230 mm

• 6.9 kg

A series of energy conversions in shown.

elastic potential energy -> kinetic energy -> gravitational potential energy

Which diagram shows a situation where this series of conversions take place?

• 
• 
• 
• 

What is the amplitude of this wave?

• 0.5 cm

• 1.0 cm

• 2.0 cm

• 6.0 cm

A centimetre rule is used to measure the height of a pile of similar blocks. The ruler is not drawn to scale.

What is the height of one of these blocks?

• 4 cm

• 5 cm

• 6 cm

• 15 cm

What are the correct units of mass and weight?

• A

• B

• C

• D

Which give a use of plant hormones in agriculture?

1 to act as a weedkiller

2 to regulate plant growth

3 to improve plant varieties

4 to ripen fruits

• 1 and 3

• 1, 2 and 3

• 1, 2 and 4

• 2, 3 and 4

Which process involves a chemical change?

• bread decaying

• making a milkshake by mixing the powder with cold milk

• making a coffee by mixing coffee powder with hot water

• making ice cubes in a freezer

Lime is used to treat acidic soil because lime is a base.

What is the pH of the solution when lime is added to water?

• 1

• 4

• 7

• 12

Which dietary advice should be given to reduce the risk of heart attack?

• include less fibre

• increase the amount of salt

• reduce the amount of sugar

• reduce the amount of fat

The diagram shows the nutritional label from a box of cereal.

It is recommended that a person eats no more than 64 g of fat each day.

A student eats one serving of this cereal in a day.

What is the percentage daily value of fat in one serving of this cereal

• 8%

• 12.5%

• 25%

• 64%