EASY
9th CBSE
IMPORTANT
Earn 100

When can a body stay at rest even if forces act on it?

Important Questions on Force and Laws of Motion

EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q A
If the acceleration of a body is to be doubled, then what change should be made?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q A
Name the property of material bodies by virtue of which they resist any change in their state of rest or of uniform motion.  (choose from momentum, inertia, impulse)
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q A
State two factors which determine the momentum of a body.
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q A
What is the total momentum of the bullet and the gun before firing?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q A
Why does an athlete run some steps before taking a jump?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q A
Which has more inertia, a cricket ball or a rubber ball of the same size? Why?
EASY
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q B
Why do we get hurt more by falling on a concrete structure than on a sand track?
MEDIUM
9th CBSE
IMPORTANT
LIVING SCIENCE PHYSICS 9>Chapter 2 - Force and Laws of Motion>Exercises>Q B
If someone jumps to the shore from a boat, the boat moves in the opposite direction. Explain why?