Unit 13

What is the instrument used to measure the current flowing in a coil of an electromagnet?

• Ammeter

• Barometer

• Ohmeter

• Thermometer

Why does the compass needle turn and points towards north-south direction?

• Because the ends of the compass needle are painted with colors

• Because the case of the compass is made of a magnetic material

• Because the Earth has a magnetic field

• Because the Earth rotates on its axis once a day

What is the magnetic force between two magnets?

• Pulling

• Pushing

• Turning

• Rotating

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Which of the following materials in the illustration is non-magnetic?

• scissors

• hair pin

• coin

• paper clip

Tags

NGSS.MS-PS2-3

Which is the best description of what happens during a chemical reaction?

• A substance goes through a chemical change.

• The physical properties of a substance are changed

• A new substance is formed during a chemical change

• They type of matter in the substance remains unchanged

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which term names the type of matter made of just one kind of atom?

• solid

• element

• molecule

• compound

Which term names a substance formed by two or more types of atoms that are chemically combined?

• matter

• mixture

• solution

• molecule

Tags

NGSS.MS-PS1-1

Which term or phrase best describes what happens when a tomato rots?

• physical change

• chemical change

• conservation of mass

• formation of a compound

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the primary function of chlorophyll in plants?

• A) Absorb water

• B) Absorb sunlight

• C) Absorb nutrients

• D) Absorb carbon dioxide

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which of the following is a renewable source of energy?

• A) Coal

• B) Natural Gas

• C) Solar Energy

• D) Nuclear Energy