Science Quiz

Density is measured in which SI derived unit?

• kg/m³

• m/s

• kg/m

• kg/m²

What material is being described? ‘A reddish, extremely ductile metal that is an unusually good conductor of electricity and heat, it is widely used in electrical components and forms part of many alloys such as brass.’

• Iron

• Copper

• Tin

• Silicone

In order for rust to occur in a ferrous metal, water, iron and what must be present?

• Air

• Copper

• Oxygen

• Carbon

When a beam deflects under a load the force in the top of the beam is called?

• Shear

• Bending

• Tension

• Compression

The definition of work is?

• Gravity x distance

• Conversion to power

• Rate of energy

• Energy transferred by force

A type of renewable fuel used to produce energy is?

• Gas

• Wind

• Nuclear

• Coal

Domestic voltage use is?

• 12V

• 110V

• 230V

• 400V

Fill in the blanks in the following sentence: The two main ways of increasing the current in an electrical circuit are by increasing the _________ or by decreasing the _________.

• Voltage, resistance
• Resistance, energy

• Voltage, power

• Power, resistance

The two components in the calculation of stress are force and?

• Area

• Volume

• Weight

• Mass

The picture below is depicting which type of force?

• Tensile force

• Compressive force

• Bending force

• Shear force