b. Both are longitudinal waves.
c. Both travel with same speed in air.
d. Both can show interference effects.
B. Antoine Lavoisier
C. John Dalton
D. Dmitri Mendeleev
b. the amount of matter in an object
c. the tendency of an object to change its motion
d. the amount of force acting on an object
Answer: Option (a) is the correct answer.
Explanation:
Momentum is the ability of an object to continue its motion. It can be measured by multiplying mass of the object and its velocity.
Mathematically, p = m × v
where p = momentum
m = mass
v = velocity
Therefore, we can conclude that out of the given options, momentum is a measure of how hard it is to stop an object.
Momentum is a measure of how hard it is to stop an object.
Momentum is a measure of how hard it is to stop an object. It depends on the mass and velocity of the object.
The formula for momentum is:
Momentum = mass x velocity.
Therefore, option a. 'how hard it is to stop an object' is the correct answer.
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b. False
conductor
transformer
electromagnet