2019 Form 2 Science Chapter 7 : Electricity and Magnetism

what is the unit for energy?

• newton

• joule

• force

• volt

• ampere

energy __________ be created and destroyed.

• can

• cannot

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

which one is renewable energy?

(there is more than 1 answer)

• fossil fuel

• water

• solar

• radioactive substances

• wind

what is the energy change for a burning candle?

• chemical energy → light energy

• chemical energy → heat energy + kinetic energy

• light energy → heat energy + chemical energy

• chemical energy → light energy + heat energy

Tags

NGSS.MS-PS1-2

what is the name of positive charge?

• electron

• neutron

• proton

• nucleus

what is the name of negative charge?

• neutron

• electron

• proton

• nucleus

Tags

NGSS.MS-PS2-3

like charges _________ each other.

• attract

• repel

• touch

Tags

NGSS.MS-PS2-3

unlike charges ________ each other.

• repel

• attract

• touch

Tags

NGSS.MS-PS2-3

p is positively- charged.

what charge is Q?

• positive

• negative

• neutral

Tags

NGSS.MS-PS2-3

what is the name of this tool?

• insulator

• dosimeter

• electroscope

• microscope