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Physics Class 10: Forces and Motion

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Questions and Answers

What is the unit of measurement for force?

Newton (correct)

Newton per second

Newton metre

Meter

What happens to the resultant force when forces are balanced?

It increases

It remains constant

It decreases

It is zero (correct)

Which formula represents speed?

S = T/D

S = D x T

S = D + T

S = D/T (correct)

In a distance-time graph, what does a descending line indicate?

The object is losing distance Signup and view all the answers

How is the moment calculated?

Distance multiplied by force Signup and view all the answers

What is the equation used to calculate speed?

speed = distance/time Signup and view all the answers

Which of the following statements about the speed of light and sound is true?

Light travels at approximately 300,000 km/s. Signup and view all the answers

How does the height of a ramp affect the speed of an object at the bottom?

The higher the ramp, the faster the object's speed. Signup and view all the answers

What is the speed of sound in air?

340 m/s Signup and view all the answers

What is the relationship between speed and velocity?

Velocity combines speed with the direction of motion. Signup and view all the answers