Which of the following, moving at the same speed, would be hardest to stop?
car
fire engine
frisbee
stroller
Which formula is used to calculate momentum?
Momentum = Mass x Speed
Momentum = Weight x Speed
Momentum = Volume x Velocity
Momentum = Mass x Velocity
Which moving object, in all likelihood, will have the greatest momentum?
volleyball hit by a fourth grader
volleyball hit by an Olympic volleyball player
volleyball hit by a senior adult
volleyball hit by a basketball coach
In which situation does the law of conservation of momentum apply?
in the absence of greatest velocity
in the presence of least velocity
in the absence of outside forces
in the presence of outside forces
The total momentum of any group of objects remains the same unless outside forces act on the objects
true
false
If outside forces such as friction are negligible, when two objects of the same mass collide and do not stick together, the objects multiply velocities.
true
false
Newton's "quantity of motion" is conservation.
true
false
Newton defined momentum as "quantity of motion."
true
false
The less momentum an object has, the easier it is to stop.
true
false
The more momentum an object has, the easier it is to stop.
true
false
Momentum, like velocity, is described by both a direction and a force.
true
false
The momentum of a 1000kg vehicle traveling at a velocity of 25m/s is __________ kg x m/s.
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