The melting point of copper is $1, 358 K$ . Express this temperature in degrees Celsius.

Important Questions on Transformation

EASY

MYP:4-5

IMPORTANT

MYP Physics A concept-based approach Years 4&5>Chapter 10 - Transformation>Exercise 7>Q 2

The surface temperature of Venus is

462 ° C

. Express this temperature in kelvin.

HARD

MYP:4-5

IMPORTANT

MYP Physics A concept-based approach Years 4&5>Chapter 10 - Transformation>Exercise 7>Q 3

A balloon contains

4, 000 {cm}^{3}

of air at a pressure of

99 kPa

. The weather changes and the pressure increases to

102 kPa

. What is the new volume of the balloon? Given that the volume of a sphere is

\frac{4}{3} π r^{3}

, by how much has the balloon’s radius changed?

MEDIUM

MYP:4-5

IMPORTANT

MYP Physics A concept-based approach Years 4&5>Chapter 10 - Transformation>Exercise 7>Q 4

A glass bottle is filled with air at

20 ° C

and at a pressure of

100 kPa

. It is then heated until the temperature is

80 ° C

. What is the new pressure inside the bottle?

MEDIUM

MYP:4-5

IMPORTANT

MYP Physics A concept-based approach Years 4&5>Chapter 10 - Transformation>Demonstrating conduction

A simple demonstration of conduction can be achieved with a Bunsen burner and some rods of different materials (copper, iron and glass are good materials to try).

Question Image

Melt some candle wax and dip the end of each rod into it; use the melted wax to stick a small nail or a pin to the end of each rod. Put the rods on a tripod and place the ends without candle wax into a Bunsen burner flame. The nail on the end of the best conductor will fall off first. In which order do you expect the nails to fall?