Motion & Graphs
What is the difference between distance and displacement?
Distance is the total path traveled. Displacement is how far and in what direction from the starting point.
What is a force?
A push or pull.
What does a flat horizontal line on a distance-time graph show?
The object is not moving.
What happens when forces on an object are balanced?
The object’s motion does not change.
What formula is used to calculate speed?
Speed = distance ÷ time.
Which Newton’s Law says an object at rest stays at rest unless acted on by an unbalanced force?
Newton’s First Law.
A car travels 100 meters in 20 seconds. What is its speed?
5 m/s.
What formula is used to calculate force?
Force = mass × acceleration.
On a velocity-time graph, what does a changing velocity show?
Acceleration.
If a 10 kg object accelerates at 3 m/s², what is the force?
30 N.