IG Physics Quiz - Circuit

Which diagram shows how the rod becomes negatively charged, and the final charge on the cloth?

• A

• B

• C

• D

Which pair of changes must cause the resistance of the wire to increase?

• A decreasedecrease

• B decreaseincrease

• C increasedecrease

• D increaseincrease

Which row describes the nature and a property of all β-particles?

• A electrons can travel through a vacuum

• B electrons stopped by a thin sheet of paper

• C helium nuclei can travel through a vacuum

• D helium nuclei stopped by a thin sheet of paper

Which pair of materials is suitable for the cable?

• A copperplastic

• B leadwood

• C plasticcopper

• D woodlead

Which row shows values with their correct units?

• A 3.0 A0.30 V1.5 A

• B 3.0 A0.30 A1.5 V

• C 3.0 V0.30 V1.5 A

• D 3.0 V0.30 A1.5 V

Which wire has the smallest resistance?

• A 2.01.0

• B 2.01.5

• C 3.01.0

• D 3.01.5

To be certain of making a second resistor of higher resistance, he should use a piece of wire that is

• A longer and thicker.

• B longer and thinner.

• C shorter and thicker.

• D shorter and thinner.

Why do the rod and balloon repel?

• A The rod and the balloon have opposite charges.

• B The rod and the balloon have like charges.

• C The rod is charged but the balloon is not.

• D The balloon is charged but the rod is not.

What do the soft-iron nails do as the switch is closed, and what do they do when the switch is then opened?

• A nails jump up nails fall down

• B nails stay down nails jump up

• C nails jump up nails stay down

• D nails stay up nails fall down

Which wire, made of the same metal, has a smaller resistance?

• A a wire of the same length with a larger diameter

• B a wire of the same length with a smaller diameter

• C a wire of greater length with the same diameter

• D a wire of greater length with a smaller diameter