Topic 5 SLG

Question 1

What is the relationship between Kelvin and pressure?

Answer 1

p1/T1=p2/T1

Question 2

What is the result of temperature increases on a gas molecule?

Answer 2

The average speed of the gas molecule also increases

Question 3

What kind of movement do gas particle have?

Answer 3

They have a random movement

Question 4

What happens when gas molecules hit walls?

Answer 4

They exert a force

Question 5

What is the formula to calculate density?

Answer 5

D = m ÷ v

Broken heart

Question 6

From Kelvins to celsius it is ___?

From Celsius to Kelvins it is ___?

Answer 6

-273

+273

Question 7

When Force increases pressure _____

Answer 7

Increases

Question 8

What is the equation for pressure difference?

Answer 8

Pressure Difference = height x density x gravitational field strength

P = h x p x g

Question 9

Convert 80ºC into Kelvins

Convert 8K into ºC

Answer 9

353

-265

Question 10

What is the equation to calculate the change in thermal energy?

Answer 10

Change in thermal energy = mass x specific heat capacity x change in temperature

/\ Q = m x c x /\T

Question 11

Describe the effect of an increase in temperature on the average speed of the air molecules?

Answer 11

It will go faster.

Question 12

What is specific heat capacity?

Answer 12

It is the energy required to change the temperature of an object by one degree Celcius per kilogram of mass (J/kg °C)

Question 13

Describe the structure of a solid.

Answer 13

It’s particles are close together and in a fixed, regular arrangement

Question 14

Describe the structure of a liquid.

Answer 14

It’s particles are close together but can move past each other

Question 15

Describe the structure of a gas.

Answer 15

It has space in between it’s particles there for they can move freely

Question 16

What kind of force does a solid have?

Answer 16

It has st

stong forces of attraction

Question 17

What kind of forces does a liquid have?

Answer 17

It has weaker forces of attraction than a solid

Question 18

What kind of forces does a gas have?

Answer 18

It has almost no forces in between its particles

Question 19

Hottest air rises to the top of a balloon. Why is this?

Answer 19

Hot air is less dense

Question 20

Jose says “The density will be the same whatever the the size of the stone, as long as the type of rock is the same.”
Juan says “Bigger stones will have a higher density because they are heavier.”
Who is correct and Why?

Answer 20

Jose - If the volume increases the mass also increases, so the density stays the same.