Science Test.
Q1 Define the following terms.
1 Speed 2. Velocity 3 Acceleration .
Answers
Speed :
Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a given amount of time, while a slow-moving object covers a relatively small amount of distance in the same amount of time
Velocity :
The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).
Acceleration :
Acceleration is the rate of change of velocity. Usually, acceleration means the speed is changing, but not always. When an object moves in a circular path at a constant speed, it is still accelerating, because the direction of its velocity is changing.
Answer:
Speed: the speed of an object is the magnitude of the change of its position
Velocity: The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.
Acceleration: acceleration is the rate of change in velocity.
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