Physics Quiz for Grade 10

A scientist records a temperature of 25 °C in the lab. What is this temperature in Kelvin?

• 248.15 K

• 298.15 K

• 273.15 K

• 325.00 K

If the temperature is 68°F, what is the approximate temperature in Celsius?

• 18C

• 20C

• 22C

• 24C

What do we call the thermal energy exchanged when two objects at different temperatures come into contact?

• Magnetism

• Heat

• Work

• Momentum

The specific heat of a substance is the energy required to:

• Raise the temperature of 1kg of substance by 1C

• Break the bonds between atoms in the substance

• Convert a substance from solid to liquid at its melting point

• None of the above

The first law of thermodynamics states that the internal energy of a system is equal to:

• The sum of kinetic and potential energy

• The temperature of the system multiplied by its volume

• The total heat added to the system plus the work done by the system

• None of the above

What happens during a phase change?

• The state of matter changes

• The mass of the substance increases

• The chemical composition changes

• All of the above

The energy needed to vaporize or condense 1 kg of a substance during a phase change between liquid and gas is known as the:

• Heat of fusion

• Heat of vaporization

• Specific heat

• External heat

A metal spoon is placed in a hot cup of coffee. The handle of the spoon becomes warm through which heat transfer method?

• Radiation

• Convection

• Conduction

• Evaporation

The process by which an object transfers heat to another object through electromagnetic waves is called:

• Radiation

• Convection

• Conduction

• Insulation

In a home with a forced-air heating system, heat is distributed throughout the room mainly by:

• Radiation

• Conduction

• Convection

• Thermodynamic equilibrium