Umar has two pans, each containing 500cm3 of water. Pan 1 is made from copper and pan 2 is made from iron. Both have a mass of 1.5kg. Which pan will require more energy to heat the water to 100°C?

Which is not a method of heat transfer

Which two processes would have occurred for a hurricane to form over sea?

What type of electromagnetic waves is released by all objects? a) Visible light waves b) Microwaves c) X-ray waves d) UV light waves e) Radio waves f) Gamma-ray waves g) Infrared waves

A welding torch produces a flame by burning acetylene fuel in the presence of oxygen. This flame is used to melt a metal. Which energy transformation represents this process?

If two lightbulbs are parallel to each other, they have the same brightness. If the same two lightbulbs are put in series with each other, they also have the same brightness but are dimmer than when they are in parallel. Explain why.

What happens if a hypothesis is not supported?

a group of elements that stretch bend and conduct heat and electricity

A rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 615.0 g. what is the volume and density of the block? (answer it with correct numbers of significant figures)

Which of the following are products of cellular respiration? Sunlight Oxygen ATP Water Carbon Dioxide

Do magnetic field lines ever start or end anywhere?