P2 Topic 1
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» P2 Topic 1
The symbol for an isotope of beryllium is shown. How many protons are in a nucleus of this isotope ?
A plastic comb is rubbed with a dry cloth. The comb becomes positively charged. The comb has
A. Lost electrons
B. Gained electrons
C. Lost protons
D. Gained protons
Which of these is designed to use electrostatic charge ?
A. An electric heater
B. A filament lamp
C. A photocopier
D. A dynamo
The diagram shows two charged balls hanging from strings. Which answer is correct for the balloons
A. The balloons repel. the charges on the balloons are the same.
B. The balloons repel. The charges on the balloons are opposite.
C. The balloons attract. The charges on the balloons are the same.
D. The balloons attract. The charges on the balloons are opposite.
The diagram shows part of a machine. The ray of light removes electric charges from part of the rotating drum. The machine is:
A. An inkjet printer.
B. A digital camera.
C. A laser printer.
D. A television
A petrol tanker becomes positively charged as it moves. When it stops, the driver connects the tanker to Earth with a conducting strip. This removes the built-up charge by conducting
A. Positive charge from the tanker to the Earth.
B. Positive charge from the Earth to the tanker.
C. Negative charge from the tanker to the Earth.
D. Negative charge from the Earth to the tanker.
Which is correct during the refuelling of an aircraft ?
A. The aircraft is connected to Earth by a conductor and positive electrons flow.
B. The aircraft is connected to Earth by an insulator and positive electrons flow
C. The aircraft is connected to Earth by a conductor and negative electrons flow
D. The aircraft is connected to Earth by an insulator and negative electrons flow
Connecting the aircraft to Earth.
A. Prevents it moving.
B. Stops its engines turning.
C. Reduces the chance of fire.
D. Helps to recharge its batteries.
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