2.4 To describe forms of energy

Natural sciences

Energy transfers and forces

Educator section

Memorandum

a) Electrical energy / sound energy / light energy.

b) Kinetic energy / potential energy.

c) Light energy.

d) Electrical energy / light energy / heat energy.

e) Kinetic energy / heat energy.

f) Chemical energy / heat energy / light energy.

Leaner section

Content

Activity 5: to describe forms of energy [lo 2.3]

Label the following sketches by naming the energy source that is depicted.

(a)

Television

(b)

“Jack-in-the-box”

(c)

Lighthouse

(a)

Lightning

(e)

Moving vehicle

(f)

Burning fire

(a) __________________________________________________________________

(b) _________________________________________________________________

(c) _________________________________________________________________

(d) _________________________________________________________________

(e) __________________________________________________________________

(f) __________________________________________________________________

5. the transfer of energy

(a) Conduction

Conduction occurs when heat moves through solid substances. Take a length of wire and hold it over a flame. What do you discover after a little while?

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

_____________________________________________________________________

The heat was transferred to your hand by means of conduction. Metals like copper, iron and aluminium are better conductors of heat than non-metals such as wood, water and cork. Particular metals also conduct heat faster than others.

Paste or draw such materials here.

Assessment

Learning Outcome 2: The learner will know and be able to interpret and apply scientific, technological and environmental knowledge.

Assessment Standard 2.3: We know this when the learner interprets information by identifying key ideas in text, finding patterns in recorded data, and making inferences from information in various forms (e.g. pictures, diagrams, text).