SCIENCE KS3 TEST (Y7)

What colour is universal indicator in a neutral solution?

• Green

• Orange

• Purple

• Red

Which of the following acids do we have in our stomach?

• Ethanoic acid

• Hydrochloric acid

• Nitric acid

A high frequency of vibrations produces .......

• Quiet sounds

• Low pitched sounds

• Loud sounds

• High pitched sounds

A loudspeaker changes .......

• Electrical energy to sound energy

• Sound energy to potential energy

• Sound energy to electrical energy

• Potential energy to sound energy

Frequency is measured in .......

• Volts

• Ohms

• Metres

• Hertz

Which of the following is the symbol for sodium?

• S

• Na

• Sd

• So

The centre of our solar system is .......

• the Earth

• Mars

• the Moon

• the Sun

Which of the following elements is a metal?

• Magnesium

• Nitrogen

• Helium

• Phosphorus

Most of the elements in the periodic table are.....

• Gases

• Metals

• Liquids

What is the correct formula for H-H?

• 2H

• H₁H₁

• H₂

• H₂₂