Physics: Scalar vs Vector Quantities, Forces, and Graphs

What is a scalar quantity?

A measure of magnitude without direction.

What is a vector quantity?

A measure of magnitude and direction (e.g., up, down, north, east, south, west).

Give examples of scalar quantities.

Distance, speed, mass, temperature.

Give examples of vector quantities.

Acceleration, displacement, force, velocity.

What does 's' represent in coding?

Displacement.

What is force?

A push or pull acting on an object.

What is the unit of force?

Newtons (N).

What is the formula for force?

F = ma (where F is force, m is mass, a is acceleration).

How do you convert kg/h to m/s?

Divide by 3.6.

How do you convert m/s to kg/h?

Multiply by 3.6.

What does Fg represent?

Force due to gravity.

What is the formula for force due to gravity?

Fg = mg (where m is mass and g is gravity).

What is the average speed formula?

Vav = d/t.

What is instantaneous speed?

How fast you are going at a certain instance.

What is the formula for acceleration?

a = (v - u) / t.

What does SUVAT stand for?

Displacement (S), Initial Velocity (u), Final Velocity (v), Acceleration (a), Time (t).

What is the formula for displacement when only u and v are known?

V = u + at.

What is the formula for displacement when only u is known?

S = ut + 1/2at^2.

What is the formula for displacement when only v is known?

S = vt - 1/2at^2.

What is the formula for displacement when time is missing?

V^2 = u^2 + 2as.

What is the formula for displacement when acceleration is missing?

S = 1/2(u + v)t.

What does a straight line on a distance-time graph indicate?

There is no movement.

What does a line going down on a distance-time graph indicate?

Decrease in speed (deceleration).