Science Quiz

What can 200 M Ω also be expressed as?

• 200x10⁻⁹ Ω

• 200x10⁻⁶ Ω

• 200x10⁶ Ω

• 200x10⁹ Ω

What is the volume of a room that measures 3 m in width, 8 m in length, and the ceiling is 2.4 m high?

• 13.4 m²

• 13.4 m³

• 57.6 m²

• 57.6 m³

What is the SI unit of measurement for temperature?

• °C (Centigrade)

• °F (Fahrenheit)

• °K (Kelvin)

• °T (Temps)

Hertz is the SI unit of measurement for what quantity?

• Resistivity

• Frequency

• Reactance

• Capacitance

How must a voltmeter be connected to measure the potential difference across a load in a DC circuit?

• In parallel with the load

• In series with the load

• Using an inverter

• Using a rectifier

What is the formula for weight?

• mass × gravity

• force

• gravity × force

• mass

Which device is a claw hammer being used as when extracting a nail from a piece of wood?

• A pulley.

• A lever.

• A winch.

• A jack.

What is stored energy also known as?

• Potential energy.

• Kinetic energy.

• Shear energy.

• Idle energy.

What would be the approximate power required to raise a 500 kg mass to a height of 50 m in 90 seconds?

• 0.277 kW

• 2.72 kW

• 37.5 kW

• 55.5 kW

What is the input of an electric motor with an output of 5 kW that has an efficiency of 80%?

• 4 kW.

• 4.25 kW.

• 6 kW.

• 6.25 kW.