Motion introduction summary:

What is linear motion?

Motion that is moving forwards or backwards along a directional line.

What is parabolic motion?

Motion that can curve, such as a ball bouncing.

What characterizes rotational motion?

Motion that moves around a fixed point.

What is changing velocity?

When speed, direction, or both are changing.

What is constant acceleration?

When velocity is changing by the same amount over a period of time.

What is changing acceleration?

When velocity is changing by a different amount over a period of time.

What does positive displacement indicate?

An object moving upwards or right.

What does negative displacement indicate?

An object moving downwards or left.

What does the symbol 's' represent?

Displacement.

What does the symbol 'u' represent?

Initial velocity.

What does the symbol 'v' represent?

Final velocity.

What does the symbol 'a' represent?

Acceleration.

What does the symbol 't' represent?

Time.

What is the formula for average speed?

Average speed = distance travelled / time.

What is the formula for average velocity?

Average velocity = displacement / time.

What is the formula for acceleration?

Acceleration = change in velocity / time.

What does a velocity vector indicate?

It always points in the direction of motion.

What does the acceleration vector indicate?

It may point in the same direction or the opposite direction to the velocity vector.

What is a vector?

An arrow that represents magnitude and direction of a quantity.

What is displacement?

The distance from where an object starts to where it ends.

What is the difference between a scalar and a vector?

A scalar has magnitude but no direction, while a vector has both magnitude and direction.