Everyday Physics Trivia: Why Things Fall and Fly

Ignoring air resistance, what happens when a heavy object and a light object are dropped from the same height?

• The heavy object lands first
• The light object lands first
• They hit the ground at the same time
• They fall at a constant speed

Why does a clear daytime sky look blue?

• Blue light is scattered by the atmosphere more than other colours
• The oceans reflect blue light upwards
• The ozone layer is naturally blue
• Sunlight is actually blue before it reaches Earth

At sea level, at what temperature does pure water boil?

• 90 °C
• 100 °C
• 110 °C
• 120 °C