Matter Revision Set 1

What is the mass of the empty bottle?

• 0.40 kg

• 0.50 kg

• 0.65 kg

• 0.80 kg

Answer explanation

mass of half of the oil is the difference between 2 readings so total mass of oil = 0.8 kg

A solid ball has a volume of 4.0 cm³. The density of the ball is 1.6 g / cm³.

What is the mass of the ball?

• 0.4 g

• 2.5 g

• 4.0 g

• 6.4 g

Answer explanation

density = mass/volume

mass= density x volume

What is the area of the metal sheet? A 700 cm2 B 875 cm2 20 30 C 900 cm2 40 metal sheet 50 D 1125 cm2

• 700 cm²

• 875 cm²

• 900 cm²

• 1125 cm²

Answer explanation

Dimensions of sheet are (25-5)cm and (45-10) cm

A block of copper has a mass of 2.0 kg. The block of copper absorbs 12 000 J thermal energy. The specific heat capacity of copper is 385 J / (kg °C). What is the temperature rise of the copper?

• 15.6 °C

• 31.2 °C

• 46.8 °C

• 62.4 °C

Answer explanation

Temperature change = Energy/(specific heat capacity x change in temperature)

12000 J ÷ (2 kg x 385 J/(kg⁰C))

A 1 kg block of aluminium requires more thermal energy to raise its temperature by 1 °C than a 1 kg block of copper requires. Why is this?

• Aluminium is a better conductor of thermal energy than copper.

• Aluminium is a poorer conductor of thermal energy than copper.

• Aluminium has a higher specific heat capacity than copper.

• Aluminium has a lower specific heat capacity than copper.

Answer explanation

The specific heat capacity of a material is the energy need to increase the temperature of 1kg of the material by 1oC.

Some ice is slowly heated and its temperature is measured. A graph is plotted of temperature against time.

Which box describes what happens to the thermal energy and to the temperature in section X?

• Thermal energy store of ice increases

  Temperature of ice rises

• Thermal energy of ice increases

  Temperature of ice stays the same

• Thermal energy store of ice does not increase

  Temperature of ice rises

• Thermal energy store of ice does not increase

  Temperature of ice stays the same

Answer explanation

latent heat of fusion (the amount of energy needed to  freeze or melt the substance at its melting point)

What are the correct terms for each change of state?

• liquid to solid: solidification/ freezing

  liquid to gas:

  condensation

• liquid to solid: melting

  liquid to gas:

  condensation

• liquid to solid: solidification/ freezing

  liquid to gas:

  evaporation

• liquid to solid: solidification/ freezing

  liquid to gas:

  condensation

Answer explanation

In 1803 John Dalton suggested that all matter is made from atoms.

The electron was the first subatomic particle to be discovered by J.J. Thomson in 1897.

J.J. Thomson developed Dalton’s model to show the presence of electrons.

What was J.J. Thomson’s model called?

• Bohr model

• Particle model

• Planetary model

• Plum-pudding model

What did Rutherford suggest about the model of the atom?

• Atoms contain a nucleus.

• Atoms contain electrons.

• The atom is a solid sphere like a billiard ball.

• The nucleus is made up of protons and neutrons.