Newton's laws of motion (9) Flashcards Preview

Physics A-Level AQA definitions > Newton's laws of motion (9) > Flashcards

Flashcards in Newton's laws of motion (9) Deck (6)
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1
Q

Gravitational field strength, g

A

near a planet is defined as the gravitational force acting on each kilogram.

2
Q

Newton’s 2nd law of motion

A

resultant force = mass × acceleration.

3
Q

Terminal speed

A

the speed reached when the weight of an object in free fall is balanced by drag forces acting upwards on the object.

4
Q

Drag

A

the name given to resistive forces experienced by an object moving through a fluid such as air or water.

5
Q

Newton’s 3rd law of motion

A

when body A exerts a force, F, on body B, body B exerts an equal and opposite force, F, on body A.

6
Q

Free body diagram

A

shows all the forces acting on a single body; no other body is shown in the diagram.