WorksheetsQuestion Bank for Grade 11 Physics
Total questions: 172
Worksheet time: 4hrs 16mins
Which wave has the longest wave length?
top wave
bottom wave
Which part of the wave is b?
crest
wavelength
trough
amplitude
Which part of the wave is labeled a?
crest
wavelength
trough
amplitude
Which wave has the greater frequency? (Assume both were made in the same amount of time.)
top wave
bottom wave
The distance between two consecutive crests is the...
amplitude
frequency
period
wavelength
The distance labeled c is...
the period
the wavelength
the amplitude
the frequency
The distance labeled d is...
the period
the wavelength
the amplitude
the frequency
The distance between a crest and the equilibrium position is the...
amplitude
frequency
period
wavelength
All waves carry ________ as they travel from one place to another.
matter
space
energy
water
Which wave in the diagram has the greatest wavelength?
As the frequency of vibration increases, the wavelength will...
increase
decrease
stay the same
Wave frequencies are measured in...
hertz
meters
seconds
Wavelengths are measured in...
hertz
seconds
meters
You create waves in a pool by repeatedly slapping the surface with your hand. If you take less time between slaps, which property of the waves will increase?
period
wavelength
frequency
amplitude
all of these
One use of radio waves is...
Broadcasting and communications
Heating
Observing internal structure of objects
Sterilising food and medical equipment
What property of this wave is represented by the letter "A" (a)
The type of waves that require medium to pass: (a)
Which letter(s) represent the trough of the wave? (a)
In a longitudinal wave, the particles move (a) ?
The longer the (a) the (b) the frequency.
Radio Waves are an example of _________ waves.
mechanical
electromagnetic
light
when a wave hits a barrier and bounces
diffraction
reflection
You're in your room blasting music with the door shut, your mom opens your door. Now your music is heard throughout your home. This is an example of _______
interference
diffraction
reflection
A piece of silly putty is dropped onto a skateboard as it rolls by. The putty sticks to the skateboard and moves the direction the board is moving. What type of collision is this?
Inelastic collision
Elastic Collision
Perfectly Inelastic collision
No collision
Collisions where objects BOUNCE apart.
inelastic collisions
elastic collisions
explosions
none of these
Joe is trying to tackle Carson while Carson is standing still. Joe is running at 15 m/s and has a mass of 32 kg. Carson has a mass of 64 kg. What is their final velocity, assuming this is a perfectly inelastic collision? (do not write units)
(a)
A 2200kg car travelling at 30m/s collides with another 2200kg car that is at rest. The two bumpers lock and he cars move forward together. What is their final velocity?
30 m/s
15 m/s
0 m/s
12.5 m/s
A 1300 kg car travels at 20 m/s and a 900 kg car moving at -15 m/s is moving head-on towards the first vehicle. When they collide, we consider it to be perfectly INELASTIC as they stick together and begin to slide to one side.
Calculate the speed and direction of the vehicles after impact. Remember to determine the total momentum before they collide.
25,115 m/s
885 m/s
11.42 m/s
26,000 m/s
A 2200kg car travelling at 30m/s collides with another 2200kg car that is at rest. The two bumpers lock and he cars move forward together. What is their final velocity?
30 m/s
15 m/s
0 m/s
12.5 m/s
2 balls collide and bounce off of each other. During the collision total momentum remained constant and total kinetic energy remained constant. What type of collision is this?
Inelastic Collision
Elastic Collision
Perfectly Inelastic Collision
No collision occurred
A BMW rear ends a car at the stop light. Neither car sticks together. The momentum was conserved in the collision but the kinetic energy was not conserved. What type of collision is this?
Elastic Collision
Inelastic Collision
Perfectly inelastic Collision
No Collision
If a collision is elastic which of the following must be true?
Momentum is not conserved
The objects are in an open system
The total momentum is equal to 0
Kinetic Energy is conserved
A car has 10,800 Kg x m/s of momentum as it collides with a trash dumpster AT REST. How much TOTAL MOMENTUM will the car and dumpster have after collision?
Less than 10,800 Kg x m/s
More than 10,800 Kg x m/s
The same. 10,800 Kg x m/s
Not enough information.
What is the TOTAL MOMENTUM for the system BEFORE COLLISION?
14 Kg x m/s
10 Kg x m/s
24 Kg x m/s
-24 Kg x m/s
What will the TOTAL MOMENTUM be AFTER COLLISION?
12 Kg x m/s
10 Kg x m/s
24 Kg x m/s
-24 Kg x m/s
Joe is trying to tackle Carson while Carson is standing still. Joe is running at 15 m/s and has a mass of 32 kg. Carson has a mass of 64 kg. What is their final velocity, assuming this is a perfectly inelastic collision? (do not write units)
(a)
A 2.5 kg ball moving at 5 m/s collides with a 2.5 kg stationary ball in a perfectly elastic collision. What is the velocity of the second ball after the collision? (a)
While playing pool, the white cue ball strikes the 8 ball. Before the collision, the cue ball's velocity was 10 m/s and the 8 ball was at rest. If both ball's have a mass of 0.15 kg and the cue ball's velocity after the collision is 2 m/s, what is the 8 ball's velocity? (a)
A 120 kg lineman moving at -2 m/s tackles an 80 kg fullback moving at +8 m/s. If the fullback's velocity after they collide is +2 m/s, what is the lineman's velocity? (a)
A 3,000 kg truck moving at +10 m/s hits a 1,000 kg parked car which moves off at +15 m/s. What is the velocity of the truck? (a)
It is an encounter between two objects resulting in exchange of impulse and momentum (a)
The total momentum before a collision is (a) the total momentum after a collision
Two billiard balls approach each other at equal speed. If they collide in a perfectly elastic collision, what would be their velocities after collision?
A. zero
B. same in magnitude and direction
C. same in magnitude but opposite in direction
D. different in magnitude and opposite in direction
When two objects collide, the Pbefore is (a) the Pafter.
The Law of Conservation of Momentum states:
The total momentum before a collision is equal to the total momentum after a collision.
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.
A 9300 kg railroad car traveling at a velocity of 5 m/s strikes a second boxcar that weighs 5000 kg at rest, transferring all of its momentum to the second boxcar. At what speed will the second boxcar move?
18.6 m/s
9.3 m/s
7.5 m/s
1.86 m/s
The total momentum of two objects before collision is 450 kgm/s. What will be their total momentum after collision?
0 kgm/s
175 kgm/s
350 kgm/s
450 kgm/s
Two billiard balls with mass 1.0 kg each are travelling towards each other. The first one is moving at a velocity of 3 m/s, while the other one moves at a velocity of -2m/s. After the collision, one billiard ball moves to the left at a speed of 2 m/s. What is the speed of the other ball?
-3 m/s
-2 m/s
2 m/s
3 m/s
A 125 kg car moving at 12 m/s hits a 200 kg car moving at -13m/s. If the first car bounces back at -12.5 m/s what is the velocity of the second car after the collision?
1.2 m/s
2.3 m/s
3.2 m/s
4.1 m/s
Two roller skaters have been resting, afterward play again around the playground and then suddenly bumped to each other and push off dircetly away, the boy with a velocity of 1.50 m/s. If the boy weighs 735 N and the girl weighs 490 N. what is the girl's velocity after they push over? (consider the ground is frictionless.)
67.9m/s
45.56m/s
-33.3m/s
-2.25m/s
Two objects are moving towards each other as shown in the diagram. The magnitude of p1 and p2 are 20 and 10 kg.m/s, respectively. AFTER COLLISION, m1 moves to the left with magnitude of p1 = 10 kg.m/s, what is p2? (a)
A croquet ball moving at 2.0 m/s strikes another ball of equal mass. The first ball stops moving after the collision. What is the velocity of the second ball after the collision?
-2.0 m/s
0 m/s
2.0 m/s
4.0 m/s
two bumper cars collide and bounce off each other. The pink is 300kg, with its passenger, and is traveling at 2.5 m/s. The blue car is 275 kg, with its passenger, with a velocity of 2 m/s. (a)
If a 12 kg bowling ball going 4 m/s strikes a 9 kg bowling ball going - 6 m/s. They have an elastic collision and after the collision the 12 kg ball is going -3 m/s. What is the speed of the 9 kg ball after the collision?
3.33 m/s
5.5 m/s
7.33 m/s
-5.5 m/s
The momentum of an object depends upon the object's ___________&_____________.
(a)
what 2 factors does kinetic energy depend on?
- Mass of the object (m)
- Speed the object is moving (v)
- Mass of the object (m)
- Weight of the object (W)
- Speed of the object (v)
- Weight of the object (W)
- Weight (W)
- velocity (V->)
A mass, m, has 50 J of energy when it is moving at a speed of v. The energy of the mass is (a) if the speed triples. (put units!)
A 50 kg student is running at a speed of 4.0 m/s.
How much kinetic energy does the student have?
A pro golfer can hit a 45 g golf ball so that it has an initial speed of 90 m/s. How much kinetic energy does the golf ball have?
How fast is a 20 kg dog running if it has 250 J of kinetic energy?
A 80.0 kg person runs with a speed of 7.00 m/s. A tennis ball (m=0.056kg) has to go to (a) have the same amount of kinetic energy as the person. (units!)
The statement that "the energy within a system remains constant and cannot be created or destroyed, only transformed" best sums up _________.
Something Mr. Lance likes to say.
Life
Law of Conservation of Energy
The scientific method
Newton's Third Law
What is energy?
something that picks up things, like a magnet.
Motion of an object
ability to do work
magic rays of sunshine that come down when you're feeling blue.
What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s
50 J
500 J
250 J
25 J
What is the kinetic energy of a zorb and human with a total mass of 90Kg rolling at 10m/s?
3,700J
900J
4,500J
6,500J
A 5 N force is applied to a 3 kg ball to change its velocity from +9 m/s to +3 m/s. The impulse on the ball is ______ N s.
A 40-kilogram mass is moving across a horizontal surface at 5.0 m/s. What is the magnitude of the net force required to bring the mass to a stop in 8.0 seconds? (a)
A 5 N force is applied to a 3 kg ball to slow it down from 9 m/s to 3 m/s. What is the impulse on the ball?
-2.5 N⋅s
-10 N⋅s
-18 N⋅s
-45 N⋅s
A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass? (a)
A boy kicks a football with a force of 20 N, the time the force acts for is 0.3 s. Calculate the impulse on the ball.
1 N⋅s
6 N⋅s
33.3 N⋅s
How can a tennis ball and a bowling ball have the same momentum? (a)
The momentum of an object depends upon the object's (a) & (b) .
Determine the momentum of 1,000-kg car moving northward at 20 m/s.
20,000 N
20,000 Joules
20,000 Kg * m/s
20,000 kg * m/s north
When the speed of an object is doubled, its momentum...
remains unchanged in accord with the conservation of momentum.
doubles.
quadruples.
decreases.
An insect applies 1.5 N of force to a windshield of a moving car. How much force does the windshield apply to the insect?
15,000 N
1.5 N
0.5 N
Not enough information
The impulse experienced by a body is equivalent to the body's change in (a)
1. Which has more momentum, a heavy truck moving at 30 m/s or a light truck moving at 30 m/s?
Heavy truck
light truck
Both have same momentum
Cannot be determined
3. A tennis player hits an approaching ball with a force of 750 N. If the player hits the ball in 0.002 s, how much impulse was imparted to the tennis ball?
1.5 N.s
5 N.s
1.3 N.s
2 N.s
4. A bowling ball which mass is 4.0 kg. is rolling at a rate of 2.5 m/s to the right. What is the momentum of the bowling ball? ?
20 kg. m/s, right
3.7 kg. m/s, right
10 kg. m/s, right
15 kg. m/s, right
5. A skateboard is rolling at a velocity of 3.0 m/s with a momentum of 6.0 kg. m/s. What is the mass?
5 kg.
2 kg.
7 kg.
9 kg.
6. A pitcher throws a baseball with a mass of 0.5 kg. and a momentum of 10 kg. m/s north. What is the velocity? (a)
7. Which has more momentum, a huge truck at rest or a small toy cart that is in motion?
toy cart
truck
same momentum
cannot be determined
8. A golf player hits the 0.02 kg golf ball, giving it a speed of 25 m/s. What is the impulse does he impart to the ball?
0.50 N.s
20.5 N.s
35 N.s
150 N.s
9. A tennis player hits an approaching ball with a force of 750 N. If the player hits the ball in 0.002 s, how much impulse was imparted to the tennis ball?
5.1 N.s
1.5 N.s
2.5 N.s
52 N.s
The impulse experienced by a body is equal to the change in its
velocity
kinetic energy
momentum
potential energy
Two identical cars are travelling along EDSA. Which of the two cars would have a greater momentum? (a)
A 25-kg girl is riding a 5-kg with a velocity of 5 m/s the East. What is the total momentum of a girl and a bike together?
100 kg•m/s
125 kg•m/s
150 kg•m/s
200 kg•m/s
It is the product of the mass of an object and its velocity.
Momentum
Velocity
acceleration
Impulse
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?
25 m/s
25 kg m/s
375 m/s
375 kg m/s
When the speed of an object is doubled, its momentum (a)
It is the product of force and time.
Momentum
Impulse
BOTH
A car is speeding along the road when a bug suddenly slams into the windshield. Which undergoes the greater change in momentum? (a)
Consider an object with a constant mass, but whose momentum is changing which of the following is true about the object?
The object is accelerating
The object is moving with constant velocity
The object is at rest
How do Impulse and Momentum related?
Change in impulse is equal to the change in momentum.
Change in impulse is greater than the change in momentum.
Change in impulse is lesser than the change in momentum.
Which of the following shows how momentum and impulse are related?
Vehicle collided
Falling of an object from a higher place
Taekwondo sports when a player shows a follow-through to his opponent
All of the above
How many significant figures: 450 m
3
2
1
0
100000000
0.000008
How many significant figures are there in 1008 grams?
1
2
3
4
27000000
5.00000008
(12.470)(271)
129.6/3
24.28 + 12.5
1421-34
1400
How many significant figures?
7945
1
2
3
4
How many significant figures?
0.150
1
2
3
4
How many significant figures?
76400.0
3
4
5
6
How many significant figures?
76490
3
4
5
6
Which one is rounded correctly for the following equation?
1.987 - 0.48 = ?
1.5
1.51
1.507
2
Which one is rounded to the correct number of significant figures for the following equation?
7520 x 0.021 = 157.92
157.92
157.9
158
160
Which answer is rounded to the correct place for the equation below?
457.1 + 459.32 = 916.42
916.42
916.4
916.0
916
Which answer is rounded to the correct place for the equation below?
487.0 / .0024 = 121750.0
121750.0
121800
122000
120000
Round 418 982 to 1 sig fig
(a)
Round 8812 to 1 sig fig
(a)
