Position-Time Graphs

Random Questions about Position-Time Graphs!

A position-time graph is a simple way to show where an object in motion is at different times.

Imagine you’re in a race—this graph would show where you are at different points during the race. A line that curves up quickly means you’re running faster and faster! You are accelerating.

Horizontal Line = Stopped!

Curving lines = Acceleration!

Here are some key things to know about position-time graphs:

1) A position-time graph shows the velocity of an object in motion.

Velocity can be zero, negative of positive.

2) Straight line means that a mass is moving at constant velocity.

3) Curving lines represent acceleration. Acceleration can be positive or negative.

4) Slope (steepness) matters:

Straight line with a gentle slope indicates that a mass is moving slowly at constant velocity.
Straight line with a steep slope indicates that a mass is moving quickly at constant velocity.
Flat line = object has stopped. The object is at rest. The velocity is zero.

Speeding Up. Net force is causing an acceleration

Constant Velocity. Acceleration = Zero

Slowing Down. Net force is causing an acceleration

Random Questions about Position-Time Graphs!