Temperature Differences and Calculations

This video tutorial is part two of an introduction to negative numbers. It begins with a recap of negative numbers on the number line and their use in real-life situations like money and temperature. The video then explores how temperature changes can be represented using negative numbers, with examples of temperature increases and decreases. It also covers how to find the difference in temperatures between various cities using a number line. The tutorial concludes with practice questions to reinforce the concepts learned.

What is the position of negative numbers on a number line?

• Below zero

• To the right of zero

• To the left of zero

• Above zero

If a liquid's temperature is 10°C and it increases by 20°C, what is the new temperature?

• 40°C

• 20°C

• 10°C

• 30°C

What happens to the temperature on the number line when it decreases?

• It moves to the right

• It moves up the scale

• It stays the same

• It moves down the scale

If the temperature drops from 20°C to -10°C, what is the change in temperature?

• 30°C

• 20°C

• 10°C

• 40°C

What is the result of subtracting 20 from -10?

• -30

• 10

• -20

• 0

If the temperature rises by 50°C from -30°C, what is the new temperature?

• 10°C

• 20°C

• 40°C

• 30°C

If the temperature of a liquid is 10°C and it falls by 10°C, what is the new temperature?

• 15°C

• 5°C

• 0°C

• 10°C

What is the result of adding 50 to -30?

• 10

• 20

• 30

• 40

How do you calculate the difference in temperature between two cities?

• By dividing their temperatures

• By multiplying their temperatures

• By subtracting their temperatures

• By adding their temperatures

If London is at -2°C and New York is at 7°C, what is the temperature difference?

• 5°C

• 7°C

• 9°C

• 11°C