EASY
Lower Secondary Stage 9
IMPORTANT
Earn 100

Why does your hair stand on end when you are in contact with the dome?

Important Questions on Electrostatics and Electric Currents

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 6>Q 10

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Look at the figure. Explain why this child's hair is standing on end as she comes down the plastic slide? What will happen to her hair when she reaches the ground?

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 7>Q 11
Why can a charge build up on a plane?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 7>Q 12
Modern digital cameras use CCD to form and store images. What did cameras use before this?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 7>Q 13
Does removing the smoke particles from the waste coming out of a chimney make the waste gases completely harmless?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Making series and parallel circuits>Q A1

Use a cell, a lamp, a switch, and some wires to make a circuit shown in figure below.

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EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Making series and parallel circuits>Q A2
Investigate what happens when you close the switch, and when you unscrew the lamp.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Making series and parallel circuits>Q A3

Investigate what happens when you close the switch, and when you unscrew one of the lamps.

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EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Making series and parallel circuits>Q A4
Design and make a series circuit in which one switch controls two lamps. Draw the circuit diagram for this.