Forces 1

What is a quantity?

Something we can measure and give a quantity to.

What are the 2 quantities?

Vectors & scalars

What is a scalar?

A quantity with a magnitude only

What is a vector?

a quantity with magnitude and direction

What do we use to represent vectors?

Arrows

What is a force measured in?

Newtons

What 3 effects can a resultant force change?

Shape, speed and direction of travel

What are the 3 non-contact forces?

Magnetism, Gravity, electrostatic

Common contact forces?

Tension, friction, drag, normal contact force

What is mass measured in?

Kg and is the amount of matter in something.

What is weight and what is it measured in?

the pull of gravity of an object with mass due to the gravitational field of another object , newtons

What is gravitational field strength measured?

N/Kg

What equation links mass, weight and gravitational field strength?

weight = mass x gravitational field strength