Gr. 7- Heat & Temp. Unit Review

Last updated almost 5 years ago
25 questions

Unit 3 – Heat and Temperature Review

1.0 Technologies for Obtaining and Controlling Heat

1

Before 1600, people believed heat was a combination of fire and air. They thought it was an invisible fluid. What was the fluid called and explain the ‘Theory’ it was based on?

1

Explain the Particle Theory of Heat.

1

What activities are directly related to heat related technologies?
(eg. staying comfortable in our homes)

1

Complete the Heating Technology Timeline

1

What does it mean when we are asked to make sustainable choices?

2.0 Heat Affects Matter

1

Describe the changes that take place with the transfer of heat to and from water.

1

List the four main principles in the Particle Model of Matter.

1

Kinetic energy is the energy of movement. Describe the particles in each state of matter.

1

Complete the following chart that helps to show the relationship between heat, the particle model
and changes of state.

1

Explain the difference between thermal energy, heat and temperature in terms of kinetic energy.

1

How is temperature measured?

1

Complete the Timeline, by adding in the dates that are missing ...

3.0 Natural Phenomena and Technology Devices

1

Illustrate and describe 4 natural sources of Thermal Energy that are available to us.

1

Explain the component parts of the different applications of Solar Energy - used for heating and generating electricity.

1

Describe what a solar array is and where it could be used.

1

Draw the component parts of a thermostat and explain how it works.

1

Describe how a bimetallic strip can be used as a switch.

1

Describe each of the two types of heating systems: Local Heating and Central heating.

1

R-Value indicates insulating value of a particular type of material. Explain what it means.

1

Identify the % of heat loss in a typical house.

4.0 Benefits and Costs of Heat Technologies

1

What is the difference between renewable and non-renewable energy sources?

1

Explain the ‘COSTS’ of using fossil fuels.

1

Describe the costs and benefits of these alternative thermal energy technologies.
* Solar
*Wind
*Geothermal
*Nuclear
*Hydro-Electric

1

What does this symbol represent?

1

Describe ways in which energy can be used wisely in the following places: