1)A collision of a system is inelastic if the system loses potential energy. a)T
ID: 1287481 • Letter: 1
Question
1)A collision of a system is inelastic if the system loses potential energy.
a)True
b)False
2)For a system of several objects, the total momentum is conserved only when the net internal force among members is zero.
a)True
b)False
3)Two objects make a collision. The object with a larger mass will always exert a larger force.
a)True
b)False
4)A Sparrow and a bee are traveling at 1.4 m/s. Which has a larger momentum magnitude?
a)True
b)False
6) The force probe must be zeroed before every measurement.
a)True
b)False
7) the track has to be leveled otherwise the momentum will not be conserved during the collision.
a)True
b)False
1)A collision of a system is inelastic if the system loses potential energy. a)True b)False 2)For a system of several objects, the total momentum is conserved only when the net internal force among members is zero. a)True b)False 3)Two objects make a collision. The object with a larger mass will always exert a larger force. a)True b)False 4)A Sparrow and a bee are traveling at 1.4 m/s. Which has a larger momentum magnitude? 5) Consider an object in uniform circular motion. Since , the object's linear momentum does not change. a)True b)False 6) The force probe must be zeroed before every measurement. a)True b)False 7) the track has to be leveled otherwise the momentum will not be conserved during the collision. a)True b)FalseExplanation / Answer
1. False
System loses kinetic energy, not potential energy.
2. True
If net internal force is present, it violates law of conservation of momentum's condition.
3. False
It depends on mass as well as velocity. Massive body with low velocity may cause less impact wrt light objects with very high velocity.
4. Sparrow because of larger mass
5. False
Momentum is a vector dependent on velocity. Velocuty changes continously in UCL.
6. True
That is the condition of conservation of momentum.
7. False
Level road is not a necessary condition for conservation of momentum. Rather, absence of any net force is.
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