Pre-Mock Quiz

A small amount of copper is heated in a container. The copper starts to melt.Which statement about the melting of copper is correct?

• Temperature is constant and the kinetic energy of the copper atoms increases.

• Temperature increases and the potential energy of the copper atoms increases.

• Temperature is constant and the potential energy of the copper atoms increases.

• Temperature increases and the kinetic energy of the copper atoms increases.

What is the correct unit for specific heat capacity?

What is missing from the conversion: T(K) = T(*C) + ___ (no d.p needed)

A metal block of mass 0.28kg has an initial temperature of 82*C. It is dropped into cold water. The temperature of the block after 1.2minutes is 20*C. The Specific Heat Capacity of the metal is 130Jkg^-1K^-1

• 31W

• 41W

• 1900W

• 2700W

What is being described here: "the lowest limit for temperature; the temperature at which a substance has minimum internal energy"

What does n stand for in the following equation: pV=nRT

• number of moles

• number of particles

• mass of gas

• number of atoms in one mole

A piece of flat A4 paper is dropped and falls to the floor. The same piece of paper is then collapsed into a ball and dropped again. Which of the following will change in the second situation?

• Maximum magnitude of air resistance

• weight of the paper

• time taken to reach terminal velocity

• initial acceleration when dropped

What is the unit of force

• N

• m

• M

• J

Which physical quantity has the same base units as energy?

• moment

• momentum

• force

• pressure

Which part of the graph shows terminal velocity?

• a

• b

• c

• d