EASY
Lower Secondary Stage 9
IMPORTANT
Earn 100

You will need a plastic ruler, a balloon, a dry cloth, and some tiny pieces of tissue paper.

Blow up the balloon and rub it. Notice how the charge attract things - try picking up paper, sticking the balloon to the wall and bending a flow of water.

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>Investigating charging>Q A3

You will need a plastic ruler, a balloon, a dry cloth, and some tiny pieces of tissue paper.

Record your observations that how charge attracts thing.

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 4>Q 4
Name the two different types of charge.
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 4>Q 5
What happens if a charged object is brought close to an uncharged one?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 4>Q 6
What happens if two objects with the same charge are brought together?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 4>Q 7

Two students bring a positively charged rod close to another rod. The rods move together. One student says that the second rod must be negatively charged -  the other says the opposite. Who is right?

EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 6>Q 8
Why does the dome of the electrostatic generator become charged?
EASY
Lower Secondary Stage 9
IMPORTANT
Cambridge Lower Secondary Science Stage 9: Student's Book>Chapter 9 - Electrostatics and Electric Currents>Exercise 6>Q 9
Why does your hair stand on end when you are in contact with the dome?
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

Question Image

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?