pls given me some 9th std sci motion state board xtra questions। not from the guide।I'll make them brainliest
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Answer:
Question 1.
The phenomenon of motion was placed on a sound scientific footing by two scientists. Write their names.
Answer:
Galileo Galilei and Isaac Newton.
Question 2.
Are rest and motion absolute or relative terms?
Answer:
They are relative terms.
Question 3.
Suppose a ball is thrown vertically upwards from a position P above the ground. It rises to the highest point Q and returns to the same point P. What is the net displacement and distance travelled by the ball?
Answer:
Displacement is zero. Distance is twice the distance between position P and Q.
Question 4.
Which speed is greater: 30 m/s or 30 km/h?
Answer:
30 m
/s
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