A. Attempt any five questions.
1. Name the factors on which momentum of a body depends
2. State the law of inertia.
3. Define one Newton force.
4. Define uniform and non-uniform motion.
5. Define various types of motion.
6. Define distance and displacement.
7. Define velocity and speed.
B. Attempt any five questions.
Answers
Answer:
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3.
One newton is the force needed to accelerate one kilogram of mass at the rate of one metre per second squared in the direction of the applied force.
1.
Momentum depends upon the variables mass and velocity. In terms of an equation, the momentum of an object is equal to the mass of the object times the velocity of the object. where m is the mass and v is the velocity.
7.
velocity :The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time.
speed :Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance.
2.
Law of inertia, also called Newton's first law, postulate in physics that, if a body is at rest or moving at a constant speed in a straight line, it will remain at rest or keep moving in a straight line at constant speed unless it is acted upon by a force.
6.
distance:Distance is a scalar quantity that refers to "how much ground an object has covered" during its motion.
Displacement:Displacement is a vector quantity that refers to "how far out of place an object is"; it is the object's overall change in position.