Mechanics
Astrophysics
Electricity
100

How is weight calculated and what is the unit?

Weight = mg (N)

100

What is the path that the Earth takes around the Sun called?

The Orbit

100

What is the symbol for a cell?

|l

200

Name the two forces acting on a ball in freefall.

Weight

Air Resistance / Drag

200

What is the gravitational field strength on Earth?

9.81 N/kg

200

Give the equation linking Voltage, Current and Resistance

V=IR

300

State all three of Newton's Laws.

  1. A body remains at rest, or in motion at a constant speed in a straight line, unless acted upon by a force.
  2. When a body is acted upon by a force, the time rate of change of its momentum equals the force.
  3. If two bodies exert forces on each other, these forces have the same magnitude but opposite directions.
300

Estimate the mass of the earth:

A) 1012 kg

B) 1018 kg

C) 1024 kg

D) 1032 kg

C) 1024 kg

300

What is the conventional flow of current in the circuit?

Positive to Negative

400

A ball is kicked and has a trajectory of an arc. Where is kinetic energy the lowest after the kick?

On top of the Arc

400

State at least 4 of the types of electromagnetic radiation.

Radio, Micro, Infrared, Visible, UV, X-ray, Gamma

400

What is the process in which electromotive force is created by a changing magnetic field?

Induction

800

State the 4 fundamental forces in order of weakest to strongest.

Gravity, Weak Nuclear, Electromagnetic, Strong Nuclear

800
What is the radiation that a black hole emits called?

Black Body or Hawking Radiation

800

Name all 4 of Maxwell's Equations

Gauss' Law, Gauss' Law for Magnetism, Maxwell-Faraday Law, Ampere's Law with Maxwell's Addition

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