Review 2.A.2 Question Preview (ID: 46715)
Use Mathematical Representations To Support And Verify The Concepts That The Total Momentum Of A System Of Objects Is Conserved When There Is No Net Force On The System.
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Which of the following has the greatest momentum?
a) A scurrying cockroach
b) A parked semi truck
c) they are the same
d) not enough information
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a) car
b) bike
c) they are equal
d) not enough information
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball.
a) 55 kg*m/s
b) 100 kg*m/s
c) 250 kg*m/s
d) 500 kg*m/s
ost modern vehicles have padded dashboards. This reduces collision injuries by...
a) reducing the driver's change in momentum
b) increasing the driver's change in momentum
c) increasing the force of impact
d) increasing the time of impact
If two objects collide and stick together, what will happen to their overall total momentum?
a) momentum will stay the same
b) momentum will decrease
c) momentum will increase
d) none of these
A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum?
a) 25 m/s
b) 25 kg m/s
c) 375 m/s
d) 375 kg m/s
A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what happen to the velocity of the two blobs?
a) increase
b) decrease
c) stay the same
d) none of these
A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will happen to the total momentum of the two blobs?
a) stay the same
b) increase
c) decrease
d) not enough information
A 9 kg blob moving at 5 m/s collides and sticks to a second blob with a mass of 5 kg. If the two bobs stick together, what will happen to the mass of the system?
a) increase
b) decrease
c) stay the same
d) not enough information
Which would have more momentum? A baseball or a bowling ball
a) baseball
b) bowling ball
c) they are the same
d) not enough information
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