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FIRST LAW OF MOTION IS ALSO CALLED AS ------------------
LAW OF INERTIA
Why do bicycles begin to slow down when we stop pedalling? ONE WORD ANSWER
FRICTION FORCE
Which law of motion gives the measure of force?
Newton’s second law of motion.
Write the C.G.S unit of force.
Dyne.
If the body is found to be accelerated, is the force acting on it balanced or unbalanced?
Unbalanced.
Body A is heavier than body Question Which has more inertia?
A has more inertia.
Name the physical quantity that corresponds to the rate of change of momentum
FORCE
What is the SI unit of momentum ?
kilogram meters per second(kg.m/s)
What will be the momentum of a body of mass ‘m’ which is moving with a velocity V ?
MV
State whether the following statement is true or false : Unbalanced forces acting on a body change its shape.
FALSE
Name the property of bodies (or objects) to resist a change in their state of rest or of motion.
INERTIA
With which physical quantity should the speed of a running bull be multiplied so as to obtain its momentum ?
MASS
When a running car stops suddenly, the passengers are jerked …………………..
forward
When a stationary car starts suddenly, the passengers are jerked …………………..
backward
Which has more inertia, a cricket ball or a rubber ball of the same size ?
cricket ball
HOW MANY TYPES OF INERTIA DO WE HAVE
3
