Worksheets › Class 7 › Electricity: Circuits and their Components
Class 7 Electricity: Circuits and their Components worksheet
CBSE Science. Cells and batteries, lamps and LEDs, switches, circuit symbols, conductors and insulators. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
A cell has a positive terminal which is the:
- paper cover
- middle of the cell
- flat metal disc
- metal cap
Answer
(d) metal cap
the flat disc is negative
- 2.
Which of these is a CONDUCTOR of electricity?
- a copper wire
- a paper strip
- a cork
- a candle
Answer
(a) a copper wire
- 3.
Which of these is an INSULATOR?
- a safety pin
- a copper wire
- a steel spoon
- a cork
Answer
(d) a cork
Section B · short answer
- 4.
What is an electric circuit?
Answer
A complete, closed path through which electric current flows.
- 5.
Write "conductor" or "insulator": (a) a coin (b) a plastic ruler
Answer
(a) conductor (b) insulator
Section C · long answer
- 6.
Describe how to make a conduction tester and use it to test materials.
Answer
Connect a cell, a lamp (or LED) and wires so two free wire ends are left open. Touch both ends to an object. If the lamp glows, the object is a conductor (key, coin, foil); if not, it is an insulator (wood, plastic, rubber).
Fresh sheets for your child
In the app, every Electricity: Circuits and their Components sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.