Free Printable Elecric current

Worksheets

Elecric current

Total questions: 15

Worksheet time: 7mins

Name

Class

Date

When a current flows into a wire, such as a wire that connects a battery to a light, the wire stays electrically _____

unbalanced

charged

neutral

uncharged

To have a complete electric circuit, the path must be _____

small

closed

big

open

The movement of electrically charged _____ is called electric _____

particles, transport

ions, current

particles, current

ions, transport

When current is passed through a mixture of water and lemon juice, bubbles rise from one of the electrodes. The bubbles are rising from the solution because

of the heating effect of current

of the chemical effect of current

current produces magnetic field around the electrodes

current always produces air bubbles when passed through a liquid

Which of the following statements is incorrect about the conductivity of water?

Rain water is a good conductor of electricity.

On addition of table salt, water conducts electricity.

On addition of lemon juice, water conducts electricity.

Water becomes a good conductor of electricity when heated.

Which of the following metals is used in electroplating to make objects appear shining?

Iron

Copper

Chromium

Aluminium

Why must parts of a circuit be properly connected before the bulb can light up?

To ensure that the bulb can light up.

To ensure that the battery can produce light in a closed circuit.

To ensure that electric current can flow through the closed circuit.

Why is a battery important in an electrical circuit?

As a source of energy.

As a path for electricity to flow through.

As a connector to connect all parts of a circuit.

What makes up an electric circuit?

Bulb and battery

Bulb, battery and switch

Bulb, battery and wire

10.

LED stands for

light emitting diode

light efficient diode

length emitting diode

light emitting device

11.

Which of the following liquid is not a good conductor of electricity?

Orange juice

Tap water

Vinegar

Honey

12.

Which one of the following solutions will not conduct electricity?

lemon juice

vinegar

tap water

vegetable oil

13.

What kind of change do you observe in the diagram given?

Electromagnetic change

Elctic change

Chemical change

Physical change

14.

When electric current passes through a conducting solution, it causes _______ _______

chemical reactions

light effect

magnetic effect

nucleus reaction

15.

there are __________ types of effects of electric current

Reset

Elecric current

Total questions: 15

Worksheet time: 7mins

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