physics 1

Question 1

describe solids

Answer 1

regular arrangement, all touching
vibrates
strong and high attraction

Question 2

describe liquids

Answer 2

irregular arrangement and all touching
moves freely
weaker attraction

Question 3

describe gases

Answer 3

irregular not touching
moves freely at high speeds
negligible attraction

Question 4

what is the name of solid to gas

Answer 4

sublimation

Question 5

how is density calculated

Answer 5

mass decided by volume

Question 6

what is the metric for density

Answer 6

kg/m^3

Question 7

what is the metric for volume

Answer 7

m^3

Question 8

what is the metric for mass

Answer 8

kg

Question 9

how do you measure the volume of regular solids

Answer 9

measure height, width and depth and multiply together

Question 10

how do you measure the volume of an irregular solid

Answer 10

find how much water displaces
- fill the can to the spout, with water
- lower the object into the can and collect the water that leaved the spout into the cylinder
- measure the volume of water displaced

Question 11

what are two pieces of equipment what are used to find displacement of water

Answer 11

eureka can
measuring cylinder

Question 12

what happens if u overestimate mass when tryin to calculate density

Answer 12

larger answer
density is proportional

Question 13

what happens if u overestimate volume when tryin to calculate density

Answer 13

answer is smaller
inversely proportional

Question 14

how do you measure the mass of a liquid

Answer 14

• weigh empty, dry cylinder or beaker
• pour liquid into container
• weigh container + liquid
• subtract contianer weight from combined container and liquid weight

Question 15

what’s the setup for doing 5 markers

Answer 15

Values
Equation
Substitute
Rearrange
Answer
Units

Question 16

how do you measure the volume of a liquid

Answer 16

• read the volume from the markings in the measuring cylinder, when on a flat surface
  -make sure it is the meniscus that is read at eye level for accuracy

Question 17

what happens when potential energy rises

Answer 17

particles more further apart
change of state

Question 18

what is internal energy

Answer 18

potential + kinetic energy

Question 19

what happens when kinetic energy rises

Answer 19

increased temperature
particles more / vibrate faster

Question 20

only _________ can change at one time

Answer 20

either potential or kinetic energy

Question 21

change in state equals..?

Answer 21

potential energy

Question 22

remaining state equals..?

Answer 22

kinetic energy

Question 23

P1 x V1 =?

Answer 23

P2 x V2

Question 24

what is ‘work’

Answer 24

transfer of energy by a force

Question 25

what happens when the particles bounce off the walls of the container

Answer 25

they move faster increases pressure

Question 26

what is boyles law

Answer 26

pressure is inversely proportional to volume at a constant temperature

Question 27

why does a bicycle pump get hot

Answer 27

• more gas in same volume • more frequent collisions • increase in pressure • increase in temperature

Question 28

how do you increase gas pressure

Answer 28

• putting more particles in more collisions • increasing temp hits container harder n more frequently average energy increase

Question 29

what angle is force at on the walls when particles hit

Answer 29

right angles

Question 30

specific latent heat equation

Answer 30

energy (j) x mass (kg) x specific latent heat (j/kg)

Question 31

specific heat capacity equation

Answer 31

energy (j) = mass (kg) x specific heat capacity (j/kg*c) x temperature change (*c)