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WorksheetsPhysical Science Final Review
Total questions: 131
Worksheet time: 2hrs 59mins
Can two objects ever have the same speed but different velocities?
Yes
No
I have no clue
If I walk 10 m East from my house and then decide to turn around and walk 7 m West. What is my distance and what is my displacement?
distance = 3 m East, displacement = 17 m
distance = 3 m East, displacement = 3 m East
distance = 17 m, displacement = 3 m East
distance = 17 m, displacement = 17 m
A dog and a cat are about to fight, running towards each other, both at 12 m/s. What are their velocities relative to each other?
12 m/s
24 m/s
0 m/s
6 m/s
What is the walker's speed from the observer's perspective?
30 mph right
50 mph right
50 mph left
30 mph left
A train is moving at a velocity of 15 m/s East. A passenger at the back of a train throws a baseball with a speed of 15 m/s West. What is the velocity of the baseball relative to the ground? (In other words: how fast does a person on the ground see the ball move?)
30 m/s East
15 m/s West
0 m/s
30 m/s West
Observers using different ___________________ may measure different velocities for an object in motion
frame of reference
relatives of motion
projectile motions
constant velocity
A woman on a bicycle travels at 9 m/s S relative to the ground as she passes a little boy on a tricycle going in the opposite direction. If the boy is traveling at 1 m/s N relative to the ground, how fast does the boy appear to be moving relative to the woman?
10 m/s S
8 m/s N
0 m/s
10 m/s N
The Cheerios Nascar is racing around the track at 220 m/s, the Coke A Cola Nascar is speeding at 320 m/s. What is the magnitude of velocity of the Coke A Cola Nascar relative to the Cheerios Nascar?
100 m/s
320 m/s
540 m/s
0 m/s
How fast does the hot air balloon appear to be moving to the person in the canoe?
1 m/s to the left
1 m/s to the right
5 m/s to the left
5 m/s to the right
Assume that there is a current of 2.0 m/s directed south in the river, and that the ferry’s velocity of 7.0 m/s south is relative to the water. What is the ferry’s velocity relative to the shore?
5.0 m/s N
5.0 m/s S
9.0 m/s N
9.0 m/s S
A point A is placed at a distance of 7 m from the origin, another point B is placed at a distance of 10 m from the origin. What is the relative position of B with respect to A?
4 m from A
-3 m from A
3 m from A
-7m from A
The relative velocity of a body A with respect to a body B is 5 m/s. The velocity relative to the earth of body B is 10 m/s. Both the bodies are moving in the same direction. What is the velocity relative to the earth of body A?
10m/s
15m/s
-5m/s
0m/s
Observers using different ___________________ may measure different velocities for an object in motion
frame of reference
relatives of motion
projectile motions
constant velocity
For us humans, what is our basic reference frame?
Earth
The Sun
The Universe
The Milky Way Galaxy
What is Relative?
Relative means opposite
Relative means in comparison of something else
A passenger at the rear of a train traveling at 15 m/s relative to the ground throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train. What is the velocity of the baseball relative to the ground as it leaves the thrower’s hand? In other words: how fast does a person on the ground see the ball move?
30 m/s
15 m/s
0 m/s
20 m/s
A motor boat begins traveling north on the Colorado River, directly against the river's current. The boat's velocity is 35 m/s with respect to the water. The velocity of the river's current, relative to the ground, is 9.5 m/s in the opposite direction.
What is the velocity of the boat relative to the ground?
25.5 m
45.5 m
54.5 m
39.5 m
comparison point
reference frame
point of view
motion detector
You are riding in a boat that is traveling 15 m/s in still water. You move from the front of the boat to the back of the boat at 3 m/s. What is your speed relative to the water?
9 m/s
10 m/s
12 m/s
18 m/s
You are riding a train traveling 40 m/s. You move toward the back of the train at 2 m/s relative to the train. What is your speed relative to the train tracks?
2 m/s
38 m/s
40 m/s
42 m/s
A boat heading north crosses a wide river with a velocity of 10.00 km/h relative to the water. The river has a uniform velocity of 5.00 km/h due east. What formula would you used to Determine the boat’s speed with respect to an observer on shore.
subtraction (10-5)
addition (10+5)
division (10/5)
Pythagorean Theorem (A2 + B2 = C2)
Multiplication (10*5)
What is the relative velocity of the rabbit to the boat people?
(Reference West as negative, and East as Positive). W-E
10 m/s West
10 m/s East
0 m/s
-10 m/s
What is the relative velocity of the WHALE to the boat people?
(Reference West as negative, and East as Positive). W-E
-8 m/s (West)
12 m/s (East)
8 m/s (East)
-12 m/s (West)
A motorboat, which has a speed of 5 m/s in still water, is crossing a river (from west to east) The river's current is flowing south at 3.3 m/s. What is the magnitude of the boat’s resultant velocity with respect to the starting point?
3.3 m/s
5.0 m/s
6.0 m/s
8.3 m/s
Michael walks in the following order: from Point A, to Point B, and finally to Point C. Which is true?
Distance and displacement are EQUAL
Distance is less than displacement
Displacement is less than distance.
Which driver has an equal distance and displacement at B?
1
2
3
Another word for "size" is...
magnification
magnetism
magnitude
magnanimity
A large moving ball collides with a small stationary ball. The momentum
of the large ball decreases, and the momentum of the small ball increases.
of the small ball decreases, and the momentum of the large ball increases.
of the large ball decreases, and the momentum of the small ball decreases.
does not change for either ball.
Which of the following would transfer more energy?
Lowering ball 1 before release
Raising ball 1 higher before release
Gently putting ball 1 down next to ball 2
Keeping ball 1 in the same place
Which of the following is true about what happens to energy when two balls collide?
The total amount of energy between the two balls becomes zero.
The total amount of energy between the two balls stays the same.
The total amount of energy between the two balls increases.
The total amount of energy between the two balls decreases.
What happens when two objects collide?
Energy is changed into force.
Energy is transferred from one object to another.
Energy is created and the objects move faster.
What effects the amount of energy transferred in a collision?
the speed
the weight
the speed AND mass
Gravity is the force that pulls objects toward each other.
True
False
In order for an object to speed up, the direction of the force is:
in any direction
in the same direction as the object's motion
in the opposite direction of the object's motion
If the same strength force is exerted on two objects, the object with ___ mass will have a ___ change in velocity.
less, smaller
more, greater
more, smaller
less, shorter
If no force is being applied to a stationary object, the object will...
remain stationary.
accelerate in the direction of the force.
move at a constant speed in the direction of the force.
accelerate in the opposite direction of the force
A push or pull that can change the motion of an object
velocity
balanced
mass
force
The momentum of an object depends upon the object's ___________&_____________.
size and shape
mass and speed
mass and veloctiy
mass and energy
You do not know an object's velocity until you know it's
Speed
Reference point
Speed and direction
Acceleration
What scientist came up with the 3 laws of motion?
Mr. Willson
Gregor Mendel
Ms. Forbes
Isaac Newton
Force = ma is the formula from
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
The Law of Conservation of Momentum states that the amount of momentum in a system is ___________________ before and after a collision.
greater
decreased
the same
unknown
Which one of Newton's laws are displayed
2nd law
1st law
3rd law
An object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an outside force. Which law does this describe
2nd law
1st law
3rd law
What force slows objects down and keeps them from moving?
Acceleration
Gravity
Friction
Net Force
When there is a change in motion?
When forces are balanced
When the forces are unbalanced
Whe forces are equal
Never
What are the three types of friction?
Big, small, and medium
Isaac, Albert, and James
1st, 2nd, and 3rd
rolling, static, and kinetic
How many laws of motion did Newton write?
1
2
3
4
What are the names of the two nuclear forces we talked about?
Strong and weak
charm and strange
quark and neutrino
contact and field
What is a field force?
A force where you have to have your hand touching and object.
A force that appears in wheat fields.
A force that acts with out touching the object.
The acceleration.
What is a contact force?
A force where you have to have your hand touching and object.
A force that appears in wheat fields.
A force that acts with out touching the object.
The acceleration.
What is mass?
The weight of the object
How much matter is in the object
How much space it takes up
The force of gravity on the object
What is weight?
The mass of the object
How much matter is in the object
How much space it takes up
The force of gravity on the object
You are pushing on a bookshelf but you cannot get it to move. What type of friction would you have in this case?
Static
Rolling
Kinetic
Potential
You are pushing a couch across a room. What type of friction would you have in this case?
Static
Rolling
Kinetic
Potential
You are driving your car. What type of friction would you have between the tires and the road?
Static
Rolling
Kinetic
Potential
If an object has a net force of 0N acting on it
it will start moving
its motion will not change
it will immediately go 0 mph
there is no one pushing on it
We talked about two Nuclear forces in class, what are the differences between the strong and weak forces?
The strong force is stronger than the weak force, but they are both forces that act over very small distances in the nucleus.
The weak force is stronger than the strong force and works over a bigger distance.
The strong force and the weak force do the same thing but we have a weaker understanding of the weak force.
The strong force is what body builders use, whereas the weak force is what you use when you are holding an egg gently.
For a lever to move, do forces have to be balanced or unbalanced
balanced
unbalanced
You need to lift a heavy statue 30 feet into the air. Which simple machine would be best to use?
Wheel and Axle
Inclined Plane
Pulley
Wedge
What is a push or pull that causes an object to move, stop, or change direction?
force
gravity
inertia
friction
This machine uses wheels and a rope to raise, lower, or move a load
pulley
inclined plane
wheel and axle
lever
This is any slope or ramp that makes it easier to lift something.
pulley
inclined plane
wheel and axle
lever
How does a wheel barrow helps us to work easier?
It can carry heavy load of soil and other construction materials
It stops the motion of the object
It can move without pushing it
It can clean the surroundings
What is a lever?
It is a flexible bar that rests on a fixed point.
It is a rigid circle that rests on a fixed point.
It is a rigid bar that rests on a fixed point.
Name this simple machine.
Lever
Wedge
Pulley
Inclined Plane
Name this simple machine.
Pulley
Wheel and Axle
Inclined Plane
Lever
If the distance is longer, the effort becomes ..........
more
less
the same
A simple machine is a device that helps to reduce the amount of _____ required to do the same amount of work.
force
energy
work
________________ is done whenever a force moves an object a distance.
Load
Friction
Force
Work
Simple machines can make work easier by reducing the input force needed to move an object. However, there is a trade off for decreased input. What is the trade off?
The distance the object is moved is increased.
The distance the object is moved is decreased.
The amount of work is increased.
The amount of work is decreased.
What is the formula needed to solve for work?
w = f/d
w = f*d
w = f+d
If you push a cart with a force of 60 N for 2 m, how much work have you done?
120 J
30 J
120 N
30 N
Two people shove on a wall with 100 N of force. The wall does not move. How much work have they done?
100J
100N
0J
0N
This principle states that the faster a fluid moves, the less pressure the fluid exerts.
Bernoulli's Principle
Newton's Principle
Pascal's Principle
Archimedes' Principle
If a hairdryer blows a stream of air between two soda cans hanging side by side, the soda cans will ____________________.
rise
move away from each other
move toward each other
not move
Where will air move faster - above or below an airplane wing?
above
below
True
False
from the image below which represents the correct force of the fluid pressure on solid objects ...
HYDRUALICS SYSTEM...
Uses power to make things move.
Uses fluid to make things move.
The basic idea behind any hydraulic system is very simple: Force that is applied at one point is tranitted to another point using________
A compressible fluid
An incompressible fluid
A cold compress
A hot compress
Where can you look on your car to see a good example of a basic piston-driven hydraulic system?
The blinkers (you should always check your blinker fluid)
The instrument panel
The brake system
The radio system
The great thing about hydraulic systems is that the pipe connecting the two cylinders can be__________
Disconnected, yet still operate
Any length and shape
Filled with air
All of the above
Which one of the following is an example of a hydraulically operated machine?
A wheel barrow
A laptop computer
A bulldozer
A vacuum cleaner
Which of the following sentence is true?
Gases are easy to squish
Liquids are easy to squish
Zara has four different styles of shoes.
Which shoes will exert the greatest pressure on the floor when Zara wears them?
Which situation produces more force on the floor?
standing on one foot
standing on two feet
standing on four feet
all produce the same force
Which situation produces more pressure on the floor?
standing on one foot
standing on two feet
standing on four feet
all produce the same pressure
Pressure can be exerted by solids, liquids and gases.
TRUE
FALSE
The pressure inside the syringe will decrease if we move the plunger in:
Direction A
Direction B
We don't have to move the plunger as the pressure will change on its own.
None of the above answers.
What is the purpose of a water tower?
To store water for later
To maintain constant pressure in the water mains.
To tell you what town you just entered.
To reduce pressure at the water treatment plant.
What is a Barometer?
It is a device that is used to measure water temperature.
It is a device that is used to measure pressure in water mains.
It is a device that measures atmospheric pressure.
It is a device that measures the length of bars in meters.
What happens to water when you put it in a vacuum?
It starts to boil because of the release of pressure.
It just sits there.
It gets really hot. If you leave it long enough it might get hot enough to boil.
It spontaneously disappears.
A 1 in2 piston applies a 35 lb force to a fluid. What pressure is produced in the fluid?
35 psi
1 psi
10 psi
350 psi
A tube of hydraulic fluid is under 50 psi of pressure. If it connects to a piston that has an area of 100 in2 what force is exerted on the piston?
100 lb
5000 lb
50 lb
.5 lb
