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WorksheetsNewton's Laws Quizizz
Total questions: 61
Worksheet time: 3hrs 44mins
If an object accelerates at 5 m/s^2 starting from rest, what will it's velocity be in 5 seconds?
5 m/s
25 m/s
-25 m/s
20 m/s faster than its original velocity
How can friction be reduced?
reduce the normal force acting between the 2 surfaces
reduce the roughness of the 2 surfaces coming in contact
use wax, grease or oil
all of the above are ways of reducing friction
In a Balanced Force, which is true? Select all that apply
There will be no movement
The object will speed up
The object could be moving with constant velocity
The object will slow down
The object is changing direction
In an Unbalanced Force, which is true?
There will be no movement
The object has a constant velocity
The object has a change in its velocity
unbalanced force, accelerate, gravity
Your car has a mass of 2500 kg and a net force of 5000 N. How fast will it accelerate?
20 m/s2
2 m/s2
0.5 m/s2
120 N
The force of a cart doubles. What happens to the cart's acceleration? the mass?
It doubles, double
It quadruples, quadruples
It halves, halves
It doubles, stays same
It halves, stays the same
The amount of friction depends on the force of the objects pressing together.
True
False
Darth Vader flew his death star to help his neighbors on Alderaan at a constant velocity of 300,000 m/s. The engines 500 newtons of force to the right. How much force was put to the left?
500N
250N
1000N
Unable to determine
Admiral ackbar tell his pilot to accelerate to 6m/s2 to avoid a trap. Its mass is .3kg. What was the net force?
18N
1.8N
2N
.2N
The diagram above shows a box being pulled up the ramp. letter represents the weight (Fg)?
A
B
c
d
True or False. 20,000 N= 20,000 kg ⋅ m/s2
True
Fasle
Which of the following is considered a Field Force or a force that acts at a distance?
Friction
Normal
Tension
Gravity
A box attached to the rope sits on a frictionless inclined plane. What is the direction of the component force of gravity that balances the normal force?
down the ramp to the right
down and to the left
straight down
up the ramp to the left
up and to the right
As the angle of the incline increases, what happens to the normal force?
The normal force increases
The normal force decreases
The normal force is not affected by the incline
The normal force is only dependent on the force due to gravity
If there is no friction, then the acceleration would be equal to
mg
sin(θ)mg
g
sin(θ)g
Why is there no net force in the middle of this graph? This is F to t for an elevator.
There is. You can't trick me.
The elevator is at rest
The elevator is accelerating
The elevator has a constant speed
Which object has the most inertia?
A 5kg tennis ball traveling at 10m/s.
A 30kg book resting on a desk.
A 0.2kg leaf falling from a tree.
A 20kg brick thrown at 15m/s.
Taylor wants to test the effect of friction. She places a block on a plank and raises one end so that the plank is inclined. What is the maximum angle that incline can have before the block begins to accelerate if the coefficient of friction is 0.7?
46°
10°
35°
44°
Refer to the picture to answer the following question. If M = 1kg, what is the acceleration of the masses? Assume the surface is frictionless.
a = 4.67m/s2
a = 6.67m/s2
a = 2.67m/s2
a = 1.33m/s2
1. After firing a cannon ball, the cannon moves in the opposite direction from the ball. This an example of:
A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. Newton’s Law of Gravitation
E. None of the above
2. In the absence of an external force, a moving object will
A. slow down and come to a stop
B. speed up
C. move with a constant speed in a straight line
D. turn to the right
E. turn to the left
3. A passenger who is standing and facing forward in a moving bus suddenly falls forward. This can be an indication of which of the following?
A. The bus speeds up.
B. The bus slows down
C. The bus doesn’t change its speed
D. The bus turns to the right
E. The bus turns to the left.
6. The Earth pulls down on a railroad passenger car with an action force of 2x105 N. Which of the following is the reaction force?
A. The car pulls up on the Earth with 2x105 N
B. The car pushes down on the railroad tracks with 2x105 N
C. The railroad tracks push up on the car with 2x105 N
D. The buoyant force pushes up on the car with 2x105 N
E. The car pushes down on the Earth with 2x105 N
13. An elevator car weighs 5500 N. If the car accelerates upwards at a rate of 4.0 m/s2 , what is the tension in the support cable lifting the car? Use g = 10 m/s2
A. 1600 N
B. 3300 N
C. 4400 N
D. 7700 N
E. 8700 N
26. As shown below, a boy pushes a sled of mass m across a rough horizontal surface by applying a force of magnitude F directed at an angle θ. The coefficient of kinetic friction between the sled and the surface is µk. The friction force on the sled is:
A. µk (mg + Fsinθ)
B. µk (mg - Fsinθ)
C. µk (mg + Fcosθ)
D. µk (mg - Fcosθ)
E. µk mg
When an object is moving, friction acts in the _______ direction as the motion.
perpendicular
same
opposite
precise
The magnitude of the friction force depends on the force pushing the surfaces together.
True
False
The free body diagram of four boxes are shown below. Which box is in equilibrium?
An apple weighing 1 newton on the surface of Earth has a mass of approximately
1 kg
0.1 kg
10 kg
100 kg
A block is pulled out with the force of 10 N forming an angle of 37o above the horizontal as shown. What is the horizontal component of the force?
7.5 N
6.0 N
8.0 N
10 N
