Revision Year 10 Topics: The Basics

What is meant by steam point?

• temperature where liquid boils at one atmospheric pressure

• temperature where liquid freezes at one atmospheric pressure

• temperature at which pure water boils at one atmospheric pressure

• temperature at which pure water freezes at one atmospheric pressure

What is meant by sensitivity in a thermometer?

• A measure of how hot or cold a substance is

• the ability to detect and measure a small change in temperature

• the time required for thermometric substance to reach the temperature of the surrounding

• the even expansion of the liquid with equal increase in temperature

What is meant by heat capacity?

• Amount of thermal energy required to change state of a unit mass without change in temperature

• Amount of thermal energy required to change the state of a substance without a change in temperature

• Amount of thermal energy required to raise the temperature of a unit mass by 1°C

• Amount of thermal energy required to raise the temperature of a substance by 1°C

Specific heat capacity can be found by using

• thermal energy / (mass X change in temperature)

• Mass / (thermal energy X change in temperature)

• (Mass X Change in temperature) / thermal energy

• (thermal energy X change in temperature) / mass

What is meant by specific latent heat?

• amount of thermal energy required to change the state of a substance without a change in temperature

• amount of thermal energy required to change state of a unit mass without change in temperature

• amount of thermal energy required to raise the temperature of a substance by 1°C

• amount of thermal energy required to raise the temperature of a unit mass by 1°C

Specific latent heat is given by

• mass / thermal energy

• thermal energy / mass

• thermal energy / (mass X change in temperature)

• (mass X change in temperature) / thermal energy

What is meant by frequency of a wave?

• Time taken to produce one complete wave

• Maximum displacement of a particle

• Shortest distance between two points in phase

• Number of complete waves in 1 second

What is meant by 'virtual image'?

• The light rays converge/come from the image

• The light rays do not converge/come from the image

• The image can be captured on screen

• The image cannot be captured on screen

What is meant by 'critical angle'?

• An angle of refraction of 90°

• An angle of incidence at which the angle of refraction is 90°

• An angle of incidence of 90°

• An angle of refraction at which the angle of incidence is 90°

Refractive index is given by

•  $\frac{\sin\ i}{\sin\ r}$  

•  $\frac{\sin\ r}{\sin\ i}$  

•  $\frac{1}{\sin\ c}$  

•  $\frac{\sin\ c}{\sin\ r}$