Physical Science

Question 1

Radiation

Answer 1

The heat transfer of electric magnetic waves.

Question 2

Convection

Answer 2

It is the transfer of heat from water and gas.

Question 3

Conduction

Answer 3

Is the transfer of heat through touch.

Question 4

Physical properties

Answer 4

Can be observed or measured without changing the composition of matter.

Question 5

Physical Changes

Answer 5

It does not change its physical composition. Like changing its color.

Question 6

Chemical properties

Answer 6

Happens after a chemical reaction which changes it’s whole property. Burning wood.

Question 7

Chemical changes

Answer 7

Happens when another substance combines with another to form a new substance.

Question 8

Average speed

Answer 8

Distance divide by time. Describes how far an object moves during a certain amount of time. Example A car moved 100 meters in 20 seconds average speed 5 meters per hour.

Question 9

Velocity

Answer 9

Describes the speed and the direction of an objects motion.

Question 10

Friction

Answer 10

Friction is a force that occurs when two objects rub against another. Friction slows objects or stops them. It also produces heat.

Question 11

Newton’s First Law

Answer 11

When an object n motion it wants to say in motion. When an object is at rest , it wants to stay at rest.

Question 12

Newton’s Second Law

Answer 12

When 2 forces on an object are balanced, the object does not move. When the forces are unbalanced, the object moves.

Question 13

Newton’s Third Law

Answer 13

For every action, there is an equal and opposite reaction. Action - Reaction.

Question 14

Force

Answer 14

Is a Push or Pull.