Y10 Physics

What is Kinematics?

The branch of Physics concerned with describing the properties of moving objects, without considering causes.

What does a vector quantity require?

Both magnitude and direction to be fully described.

What does a scalar quantity require?

Only magnitude (size and appropriate units) to be fully described.

What is a model in the context of Physics?

A representation of something that cannot be directly observed.

What is a free-body diagram?

A simple model that represents the forces acting on an object.

What is the difference between simple and complex in terms of models?

Simple refers to having few component parts, while complex refers to having many component parts.

What is the formula for displacement?

Displacement is defined as the change in position.

What does Δ represent in physics?

It represents 'change in' and is calculated as final state - initial state.

How is distance defined in physics?

The length of the path travelled.

What distinguishes speed from velocity?

Speed is the rate of change of distance with time and is a scalar quantity, while velocity is the rate of change of position with time and is a vector quantity.

How is acceleration defined?

The rate of change of velocity with time.

What is required to effectively communicate direction?

A reference point is essential to giving directions properly.

What is motion in one dimension?

Motion along a straight line, where there are two possible directions.

What are compass points used for?

To indicate directions in two-dimensional motion.