Test 1 - Key words & Concepts

average speed

scalar quantities

instantaneous speed

velocity

vector quantities

magnitude, units, direction

acceleration

Newton's first law of motion or Law of inertia

Newton's second law of motion

Newton's third law of motion

action force, reaction force

net force

mechanical equilibrium

mass, weight

projectile motion

friction always opposes motion

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Test 2 - Key words & Concepts

momentum

impulse

to conserve

Conservation of Momentum

elastic collision

inelastic collision

Conservation of Energy

kinetic energy

work

gravitational potential energy

total energy

centripetal force (an action force), centripetal acceleration

Newton's Law of Universal Gravitation

the tides