# Physics Hinesh

HideShow resource information
• Motion.
• The distance-time graph for any object that is - stationary is a horizontal line - moving at constant speed is a straight line that slopes upwards.
• The gradient of a distance-time graph for an object represents the object's speed.
• Speed in metres per second, m/s = distance travelled in metres, m / time taken in seconds, s.
• Velocity is speed in a given direction.
• Acceleration is change of velocity per second. The unit of acceleration is the metre per second squared (m/s2).
• Acceleration = change of velocity / time taken.
• Deceleration is the change of velocity per second when an object slows down.
• If a velocity-time graph is a horizontal line, the acceleration is zero.
• The gradient of the line on a velocity-time graph represents acceleration.
• The area under the line on a velocity-time graph represents distance travelled.
• The speed of an object is given by the gradient of the line on its distance-time graph.
• The acceleration of an object is given by the gradient of the line on its velocity-time graph.
• The distance travelled by an object is given by the area under the line of its velocity-time graph.
• Forces.
• A force can change the shape of an object or change its motion or its state of rest.
• The unit of force is the newton (N).
• When two objects interact, they always exert equal and opposite forces on each other.
• The resultant force is a single force that has the same effect as all the forces acting on an object.
• If the resultant force on an object is zero, the object stays at rest or at constant velocity. If the resultant force on an…

## Comments

No comments have yet been made

## Similar Physics resources:

See all Physics resources »