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WorksheetsTRAILBLAZER
Total questions: 45
Worksheet time: 58mins
The momentum of an object is the sum of its mass and its velocity.
True
Maybe
A & B
False
When two objects collide, their momentum after the collision is explained by ______.
Newton’s first law of motion
Newton’s second law of motion
Newton’s third law of motion
the conservation of momentum
A real car moving at 10 km/h has more momentum than a toy car moving at the same rate because ______.
its mass is greater
its mass is less
it moves faster
of friction
What do objects increasing in velocity NOT have?
Momentum
Mass
Balanced forces
Acceleration
If an object with a mass of 12kg is moving at 10ms-1 what is its momentum?
120 kgms-1
120 kgms
1.2 kgm/s
0.12 kgms
Newton's Second Law of Motion can be summarized by which equation?
M = F/a
F = ma
F = mv
f = u /v
Determine the momentum of a 0.145 kg baseball thrown at 44.7 m/s.
6.4815 kgms-1
3.0827 kgms-1
30.2 kgms-1
64.82 kgms-1
A mass has a momentum of 50 kg*m/s, when its velocity doubles what happens to its momentum?
The momentum quadruple
The momentum remain the same
The momentum is halved.
The momentum is doubled
A projectile of mass 1kg traveling at 9ms-1 collides with another projectile of mass 2 kg traveling at 6 ms-1 in the same direction. If the projectiles "stick" together after their collision, what is their velocity after colliding?
8 m/s
7.0ms-1
9 m/s
7.5ms-1
What must occur for momentum to be transferred?
Interaction between multiple masses.
Interaction between a moving mass and a stationary mass.
Multiple masses must combine to form one mass.
Multiple masses must be moving in opposite directions.
The Law of Conservation of Momentum states:
The total momentum before a collision is greater than the total momentum after a collision.
The total momentum before a collision is less than the total momentum after a collision.
The total momentum before a collision is not related to the total momentum after a collision.
The total momentum before is equal to the total momentum after collision
According to Newton's third law, for every action there is an ....
Unequal and opposite reaction.
equal and parallel reaction.
equal and opposite reaction.
unequal and unrelated reaction.
An orange fruit drops to the ground from the top of a tree 45m tall .How long does it take to reach the ground? (g= 10ms-2)
9s
4s
3s
2s
If two objects collide or explode, they experience
the same impulse causing the same change in momentum.
different impulses causing the same change in momentum.
different impulses causing different changes in momentum.
the same impulse causing different changes in momentum.
Pick all of the scenarios that are explosions.
A cannon fires a cannon ball.
A spoon is shoved into a jar of peanut butter.
A linebacker tackles a member of the opposite team.
A swimmer jumps off a floating raft.
A figure skater throws a heavy ball.
A ball is released from a height of 20m. Calculate the time it takes to fall
5s
4s
1s
2s
A ball is released from a height of 20m with the time 2s ,Calculate the velocity with which it hits the ground
40ms-1
20ms-1
30ms-1
5ms-1
A body accelerates uniformly rest at the rate of 3ms-1 for 8 seconds. Calculate the distance it covers.
24m
72m
48m
96m
A car took off from rest and covered a distance of 80m on a straight road in 10s. Calculate the magnitude of its acceleration .
1.45ms-2
1.60 m/s2
4.00 m/s2
1.25ms-2
A stone is projected horizontally with a speed of 10m/s from the top of a tower 50m high and with what speed does the stone strike the ground?
22.25m/s
33.17m/s
35m/s
45m/s
A projectile is fired at an angle of 600 with the horizontal with an initial velocity of 80m/s. Calculate the time of flight
10s
13.86s
2.86s
17.3s
A projectile is fired at an angle of 600 with the horizontal with an initial velocity of 80m/s. Calculate the maximum height attained and the time taken to reach the height
480m
240m
350m
150m
The object is moving FAST
Calculate the distance travelled in section B.
(a)
What is the relationship between mass and momentum?
Momentum is equal to mass divided by velocity.
Momentum is directly proportional to mass.
Mass has no effect on momentum.
Momentum is inversely proportional to mass.
Which of the following statements is true regarding an object in free fall?
It experiences constant acceleration due to gravity.
It has no momentum.
It moves at a constant speed.
It will eventually stop due to air resistance.
What is the shape of the path of any projectile?
Parabolic
Hyperbolic
Linear
Logarithmic
A cannonball is fired at a 45.0° angle and an initial velocity of 625 m/s. Assume no air resistance. How long until the cannonball hits the ground?
75.4
45.2
62.3
90.2
objects that are actually projectiles
Any object falling with no air resistance
An airplane flying through the air
A falling skydiver with an open parachute
Motion thrown to any space
A ball is projected horizontally from the top of a vertical building 25m above the ground level with an initial velocity of 8.25ms-1. How long is the ball flight before striking the ground?.
5.9 s
23.4s
2.24s
1.9s
What is the initial height of the parabola?
h = 0.563
h = 10.063
h = 5
h = 1.356
An airplane accelerates down a runway at 5.3 m/s2 for 30.4s until it finally lifts off the ground. Determine the distance traveled before takeoff:
349m
2449m
2610m
80.6m
direction
If two vectors A and B have equal magnitude but opposite directions, then each vector is ............... vector of the other.
Positive
Negative
Zero
UNIT
What is the resultant force?
40 N left
0 N Balalnced
400 N right
40 N right
What is the resultant force?
17 N, Left
6N, Right
None of the above
11N, Left
State Newton's First law of motion?
Define Projectile of an object.
Write the four equation of motion?
And Newton's third law of motion.
