Checkpoint Grade 9 Physics Revision

The unit of mass is:

• kilogram

• newton

• watt

• kilo

Density is:

• mass / volume

• volume / mass

• mass x volume

• weight / volume

The mass of a man on earth is 75 kg, his mass on Jupiter will be

• 75 gram

• lesser

• greater

• the same

What is the distance that the object travels in the first 5 seconds?

• 4m

• 5m

• 9m

• 20m

• It is impossible to tell.

How does an electrical conductor differ from an electrical insulator?

• Charged particles are free to move about both conductors and insulators.

• Charged particles cannot move at all in the insulators.

• Charged particles are free to move about conductors.

• Insulators have a high ability to conduct electricity.

Which of the following set-ups cannot be used to determine the resistance of resistor R?

• A

• B

• C

• D

The ammeter reading in the circuit below is 1 A. Which of the following could be the voltmeter reading and resistance of the resistor?

• V = 12 V

  R = 6 Ω

• V = 1 V

  R = 2 Ω

• V = 4 V

  R = 0.25 Ω

• V = 10 V

  R = 10 Ω

Which one is the symbol of a variable resistor?

• 
• 
• 
• 

What is measured by the ammeter?

• voltage

• resistivity

• current of electricity

• charge

the reading on ammeter is 0.6 A. What unit does 'A' represent?

• Angstrom

• Ampere meter

• Ampere

• Alight