INTERACTIONS AT WORK
Energy Interactions
Energy Interactions Unit Assessment-A
5T1U2A11
Energy Interactions Unit Assessment
Study Guide
Be sure to learn these words.
force - something that starts an object moving or stops it when it is
already moving; a push or pull that can move, stop, or change the
direction of an object
gravity - something that pulls all objects towards each other
Example: Gravity keeps the moon in orbit around the Earth
friction – when one object rubs against another
magnetism - the power to repel (push away) other magnets and the
power to attract (pull towards) iron, steel, and certain other materials
energy - the ability to make changes in matter
sound- energy that comes from something that vibrates
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INTERACTIONS AT WORK
Energy Interactions
Energy Interactions Unit Assessment-A
5T1U2A11
Know how circuits work.
Energy can only travel through a circuit if it is connected all the
way through. An incomplete circuit will not conduct electricity.
Electricity will only move through the wires if they are part of an
electrical circuit.
There are several types of energy:
Solar energy – light energy from the sun that is changed into thermal
(heat) energy or electrical energy
Light energy travels in a straight line. When it interacts with matter, it can be
transmitted through, absorbed, or reflected. As light transmits through different kinds
of matter it can bend (refract). This can make the image look bigger or smaller.
What are examples of uses of solar/light energy?
Thermal (heat) energy - the energy in things––the vibration and
movement of the atoms and molecules inside materials
What are examples of uses of thermal/heat energy?
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INTERACTIONS AT WORK
Energy Interactions
Energy Interactions Unit Assessment-A
5T1U2A11
Electricity - energy that can make light or heat
What are examples of how we use electricity?
Sound Energy – the energy created by sound vibrations travelling through matter.
What are examples of how we use sound energy?
Page 3 of 4
INTERACTIONS AT WORK
Energy Interactions
Energy Interactions Unit Assessment-A
5T1U2A11
Mechanical Energy - the combined potential and kinetic energy of an object, this
energy is used to move the object
What are examples of how we use mechanical energy?
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