Question : When a freely falling object eventually stops on reaching the ground __________.

Option 1: Its potential energy decreases.

Option 2: Its kinetic energy increases.

Option 3: Its potential energy decreases, and its kinetic energy increases.

Option 4: None of the options is correct.

Question : Select the option that expresses the given sentence in passive voice.

Throw the jacket.

Option 1: Let us throw the jacket

Option 2: The jacket was thrown by you.

Option 3: Let the jacket be thrown.

Option 4: The jacket must thrown by you.

Question : The current which flows in a telephone line is_____.

Option 1: sound energy

Option 2: electric energy

Option 3: radio energy

Option 4: mechanical energy

Question : The following particles move with the same kinetic energy. Which of them has maximum momentum?

Option 1: Electron

Option 2: Proton

Option 3: Neutron

Option 4: Alpha particle

Question : Which of the following is correctly matched?

Option 1: Electric force - kilowatt minute

Option 2: Electric potential - kilowatt seconds

Option 3: Electric energy - kilowatt-hour

Option 4: Electric power - kilohour