Year 7 T3W7 Electrostatic Charges

When these two objects are rubbed together, ____________ electric charges are produced.

• mobile

• static

• no

• some

They are two types of electric charges: positive charge and negative charge.

• True

• False

Tags

NGSS.MS-PS2-3

Same or like charges ___________ each other.

• attract

• repel

Opposite charges ___________ each other.

• attract

• repel

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

The object that gains electrons will be ______________________.

• positively charged

• negatively charged

• neutral

The object that loses electrons will be ______________________.

• positively charged

• negatively charged

• neutral

Tags

NGSS.MS-PS2-3

Choose the correct reason why the hair stand and attracted to the balloon when the balloon is rubbed to the hair?

• Both balloon and hair are neutral

• Both balloon and hair are same charged

• The balloon is negatively charged and hair is neutral

• The balloon and hair are different charged

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

A glass rod becomes positively charged when it is rubbed with silk. This is because the glass rod

• gains protons

• loses protons

• gains electrons

• loses electrons

Tags

NGSS.MS-PS2-3

You walk across a furry carpet and become negatively charged. You became negatively charged because...

• Protons from your body traveled to the carpet and therefore you became negatively charged

• Protons from the carpet traveled to your body and therefore you became negatively charged

• Electrons from your body traveled to the carpet and therefore you became negatively charged

• Electrons from the carpet traveled to your body and therefore you became negatively charged.

Diagram shows a situation where we know Balloon C is negatively charged.

Which of these best applies to Balloon A?

• Positively charged

• Negatively charged

• Positively charged or neutral

• Negatively charged or neutral

Tags

NGSS.MS-PS2-3