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Answers
Answer:
1. Motion - Movement of any object from one position to another position with respect to the observer. There are 4 types motions:
Oscillatory motion
Linear motion
Rational motion
Circular motion
2. the basic difference between uniform and non uniform is that: in uniform motion, a body moves with a constant speed such as the motion of earth around the sun. while in non uniform motion a body moves with a variable speed such as a horse running in the race.
3. speed - the rate of motion of an object is to find out the distance travelled by the object in unit time. SI unit - m/s
Velocity - the speed of an object moving in a definite direction. SI unit - m/s
4. distance is the actual length of the path travelled by the object. Displacement is shorterest distance between initial and final position of the object.
5. Average speed is defined as the total path length travelled divided by the total time interval during which the motion has taken place.
6. SI unit of:
Time- second, s
Distance and displacement is the meter, m
Velocity and speed - meter per second, (m/s)
Average velocity - meters per second (m/s or ms^-1)
7. Scalars are the physical quantities that have the only magnitude. Eg: electric charge, density.
Vectors are the physical quantities that have both magnitudes as well as direction. Eg: velocity, acceleration.
Explanation:
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