Heat, Sound and Electrcity

Which is the best definition of energy

• The capacity to do work

• A unit of measurement

• Done on an object by force

• The amount of force that can happen

When a substance is heated....

• Particles gain more energy

• Particles lose energy

• Particles move in waves

• The force of attraction between particles increases

The two forms waves can take are...

• Transverse and parallel

• Sound and light

• Transverse and longitudinal

• Longitudinal and sound

Which statement best describes the process of heat transfer?

• Heat flows from areas of high temperature to low temperature

• Heat flows from areas of low temperature to high temperature

• Heat flows through invisible waves from one object to another

• Heat flows through the rising and falling of particles with different density

Three ways that heat can be transferred are:

• Conduction, convection and radiation

• Microwaves, sound waves and UV radiation

• Conduction, convection and waves

• Longitudinal, transverse and quantum waves

Sound is produced when

• Something vibrates moving back and forth very quickly

• Particles gain energy from their surroundings

• Particles lose energy and form waves

• Something vibrates creating transverse waves

Sound waves travel more effectively through

• Dense materials

• Air

• A vacuum

• Soft materials

The size of the peak of a sound wave is known as the

• Octave

• Hertz

• Frequency

• Amplitude

Electricity is a form of energy that results from either

• Energy in the form of waves

• The accumulation of charge or the flow of charge

• The sudden discharge of a positive charge

• Movement of particles from an area of high concentration to low concentration

Atoms contain negative charges in the form of:

• Protons

• Electrons

• Neutrons

• Molecules