science speed eme

• Initial speed the speed at the beginning of the motion
• Final speed the speed at the end of the motion
• Acceleration is the rate of change of velocity with time
• The acceleration due to gravity on earth is 9.8 m/s^2
• Free fall is when an object falls under the influence of gravity alone
• Drag force opposes the movement of objects through fluids
• Distance travelled the distance covered by an object during its motion
• Inertia is the tendency of an object to remain stationary or continue moving at constant velocity unless acted upon by a resultant force
• Displacement the shortest distance between two points, it can be positive or negative
• Velocity is speed in a given direction
• uniformly accelerated motion A body said to have uniform acceleration if it maintains a constant change in velocity over a given time interval
• initial distance d initial meaning
• final distance d final meaning
• average speed the average distance travelled over a period of time, divided by the time taken
• velocity: the speed of something in a given direction
• projectile motion A combination of uniform motion along the horizontal and the motion of aa freely falling body along the vertical.
• range The horizontal distance that a projectile travels from its starting point to where it lands
• trajectory: the path followed by a projectile flying or an object moving under the action of given forces
• height the vertical distance traveled by a projectile.
• speed the rate at which an object is moving along a path
• time How long it took the object from one position to another