quiz 20

Question 1

When a substance is heated and increases in temperature without changing state its particles gain _______ energy

Answer 1

Kinetic

Question 2

Are changes of state physical or chemical changes?

Answer 2

physical

Question 3

What is conserved during changes of state

Answer 3

Mass

Question 4

Describe the arrangement of particles in a solid

Answer 4

closely packed,regular arrangement

Question 5

Decreasing the temperature of gas _________ the gas pressure

Answer 5

Decreases

Question 6

When particles move further apart, their _______ energy increases

Answer 6

Potential

Question 7

What happens to the density of a gas when its compressed?

Answer 7

Increases

Question 8

Why cant liquids and solids be compressed?

Answer 8

There isn’t space between particles

Question 9

Describe the forces between particles in a gas

Answer 9

Almost zero

Question 10

How can gas turn to liquid without increasing temperature?

Answer 10

Increasing pressure

Question 11

Name the state changes: gas to liquid

Answer 11

Condensing

Question 12

When the temperature of a system increased,what 3 things affect how much the temperature changes?

Answer 12

Mass,type of material and energy input

Question 13

What causes gas pressure?

Answer 13

Collisions of particles

Question 14

What piece of equipment is used to measure the volume of a liquid?

Answer 14

Measuring cylinder

Question 15

Describe the motion and kinetic energy of the particles in a liquid.

Answer 15

Move around,higher kinetic energy than in a solid