WorksheetsMomentum and Impulse
Total questions: 10
Worksheet time: 4mins
The purpose of airbag in an automobile is to __________________.
prolong the time of impact for a given change in momentum thereby reducing the force of impact
deliver a greater force to the car occupant upon impact
shorten the time of impact
reduce the momentum of the vehicle
Two identical cars are traveling along EDSA. Which of the two cars would have greater monentum?
slower car
faster car
both have the same momentum
cannot be easily determined
The law of conservation of momentum states that the total amount of momentum of a group of objects does not change unless ___________.
outside forces acts on the objects
the objects are not moving
the objects have different masses
the objects exert forces on their surroundings
The momentum of a 15kg rock rolling at 3 m/s is ________.
18 kg.m/s
5 kg.m/s
45 kg.m/s
10 kg.m/s
Momentum is a product of _______ and velocity.
weight
mass
direction
acceleration
If an eagle and a bumblebee are both travelling at 10 km/h, which has greater momentum?
eagle
bumblebee
both
neither
Which has more momentum: a 5 kg fish swimming at 100 km/h or a 25 kg fish at rest?
the 5 kg fish
the 25 kg fish
both
neither
The impulse momentum relationship is a direct result of ______________.
Newton's 1st law
Newton's 2nd law
Newton's 3rd law
Newton's law of gravity
Padded dashboards in cars are safer in an accident than non-padded ones because passengers hitting the dashboard encounter ____________.
lengthened the time of contact
shorter time of contact
decreased impulse
increased momentum
When a truck comes to stop by crashing into a haystack or a brickwall, the stopping force is _______________.
greater with haystack
greater with brickwall
both the same
none of these
