Monday 26 March 2018

Section 3 a) Key Words

Angle: The space between two intersecting lines close to or at the point they meet.

Degrees: A unit of measurement for angles.

Frequency: The number of crests of a wave that travel past a point in a given unit of time.

Hertz: A measurement of frequency, the number of waves that pass in one second.

Metres: A measurement of distance

Metres/second: A measurement of speed or velocity. How many metres travelled in one second.

Velocity: How fast something is moving in a particular direction; a vector quantity.

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Section 4 b) Summary

The nine types of energy important to learn are: Electrical energy Light  Sound Kinetic Nuclear Thermal  Gravitational Chemical ...