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WorksheetsSemester Review
Total questions: 73
Worksheet time: 1hrs 24mins
Acceleration can be... (select all that apply)
speeding up
slowing down
staying at constant speed
changing directions
What is the equation for velocity?
distance divided by time
speed divided by time
displacement divided by time
acceleration divided by time
Select the equation for acceleration.
Select all the scenarios that represent acceleration of the car.
The image shows two cars with the same speed moving in different directions. What is true about the velocity of the cars?
Each car has the same velocity because the speeds are the same.
Each car has a different velocity because they are going in different directions.
This position - time graph shows an an object
that is stationary
that is speeding up
that is slowing down
that has constant velocity
A train decelerates from a velocity of 90 m/s to 80 m/s in 10 seconds. What is the train's acceleration?
-1 m/s2
1 m/s2
10 m/s2
-10 m/s2
Mass is ________. (more than one answer)
the quantity of matter in an object.
the measure of an object's inertia.
equal to the weight of an object.
constant for most objects.
If a person was to travel to the moon, their ____________ would be the same, but their ______________ would be less.
mass, weight
weight, mass
mass, inertia
weight, inertia
According to Newton's Universal Law of Gravitation, if the mass of m1 and m2 both doubled then Fg would
double
quadruple
be half as much.
be one fourth as much.
When an unbalanced force acts on an object, the force ______________________.
changes the motion of the object
is cancelled by another force
does not change the motion of an object
is equal to the weight of the object
What is the acceleration of a 50 kg object pushed with a force of 500 newtons?
100 m/s2
25,000 m/s2
10 m/s2
25 m/s2
Which of the following explains the difference between speed and velocity?
Speed has both magnitude and direction
Velocity only has magnitude
Speed is a vector quantity
Velocity is a vector quantity
The acceleration of an object due to gravity near Earth's surface is ____.
measured in Netwons
friction
Newton's first law
-9.8 m/s2
The glow sticks produce light for a short amount of time. The light from the glow stick is a conversion from _________ energy into ___________ energy?
thermal, electromagnetic radiation (light)
gravitational potential to kinetic
electromagnetic radiation (light), electrical
chemical, electromagnetic radiation (light)
According to which law of energy, energy can't be created or destroyed?
Newton's First Law of Motion
Universal Law of Gravitation
Joule's 2nd Law of Energy
The Law of Conservation of Energy
Stored energy is called ______ energy.
Kinetic
Potential
Pacific
Positive
Potential energy depends on ____________ & ______________.
mass, speed
mass, position
speed, position
mass, weight
A windmill is an example of ________________energy.
thermal
mechanical
light
electrical
Mechanical energy consist of
Gravitational Potential Energy and Kinetic Energy.
Gravitational Potential Energy and Thermal Energy.
Kinetic Energy and Thermal Energy.
Thermal and Electromagnetic Radiation (Light)
Why does a metal lawn chair get hot in the sun, while the the grass sitting in the same sunlight remains cool to the touch?
The metal has a high specific heat, while the grass has a low specific heat.
The metal has a low specific heat, while the grass has a high specific heat.
The metal conducts the heat away from the grass, thus keeping the grass cool.
The metal allows convection currents to help radiate the energy from the grass.
When the 2nd story of a house is warmer than the 1st floor of a house the heat is transferred through
conduction
convection
radiation
thermal equilibrium
The specific heat of aluminum is 0.900 J/g K, and the specific heat of gold is 0.126 J/g K. If you had the same mass of each and they were both at 22 oC, which one would reach 100 oC first.
Copper
Gold
Both would reach 100 oC at the same time, since they are starting at the same temperature.
Neither would reach 100 oC, because that is way too hot for a metal to reach.
According to the kinetic theory: The ____________ the particles of a substance move the _____________ the temperature of the substance.
slower, higher
faster, higher
faster, lower
acceleration, lower
A desk, a cup of water, and the air in a room are all at room temperature. Rank the kinetic energy of the particles from greatest to least that make up these items.
Air, Desk, Water
Air, Water, Desk
Desk, Air Water
The particles all have the same kinetic energy.
An object is speeding up when: (Choose All That Apply) (May have to choose more than 1 to be right)
it is gaining kinetic energy.
it is losing kinetic energy.
it is gaining gravitational potential energy.
it is losing gravitational potential energy.
How much kinetic energy (KE) does a baseball with a mass of 0.143 kg have if it is travelling at a velocity of 41.1 m/s?
HINT: K = 1/2mv2
120.8 joules
89.7 joules
108.3 joules
156.6 joules
What is the MECHANICAL energy of the roller coaster car in the picture?
100 joules
50 joules
2500 joules
1 joule
What was the Kinetic energy of the car at near the bottom of the hill if the car still had 10 J of Potential energy?
10 joules
50 joules
90 joules
500 joule
At which point in the picture must the cart have the most MECHANICAL energy?
A
B and D
C
They would all be the same
If a 0.5 kg ball is thrown up with 250 J of kinetic energy, how high will it go?
(HINT: At the ball's highest point it has stopped.) KE = 1/2mv2
g = 9.8 m/s2
51 m
25.5 m
12.76 m
31.6 m
A cliff diver with a mass of 125 kg jumps off a high cliff, at a height of 10m he is moving at 15.5 m/s. What is his MECHANICAL energy.
(HINT: ME = KE + PE)
g = 9.8 m/s2
15,015.6 J
12,250 J
27,265.6
2,765.6
Softer landings tend to reduce the force on the object, because they _______________.
decrease the impulse
decrease the collision time
increase collision time
increase the change in momentum
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
66 N s
None of these
If an air bag changes a 60 kg person's speed from 40.0 m/s to 0.0 m/s, what impulse must act on the person?
2400 kg.m/s
1.5 kg.m/s
0.67 kg.m/s
1500 kg.m/s
The equation to calculate momentum is
p = m x v
p = 1/2 m x v2
p = m x g x h
p = m x g
What type of collision occurs when two objects completely rebound off each other without loosing energy?
Elastic
Inelastic
Coelastic
explosion
A baseball is caught by a catcher during the game. What is true about the force on the ball?
The force on the ball is greater than the force on the glove.
The force on the ball is less than the force on the glove.
The force on the ball is equal to the force on glove.
Unable to determine without the velocity of the ball.
A fly is hit by a moving car. Which one experiences a greater force?
Car
Fly
Neither, the force is the same.
Unable to determine
A sumo wrestler collides head on with a high school student. Who has the larger change in momentum?
Student
Sumo wrestler
They both have the same change in momentum.
Can't tell without knowing their initial and final velocities.
What happens to the force between two charged objects if you triple the magnitude of one charge?
A third as much
Three times as much
one ninth as much
nine times as much
What happens to the force between two charged objects when you double the distance between them?
twice as much
half as much
four times as much
one fourth as much
Which of the following will repel one another?
the North pole and South pole of a magnet
a negatively-charged balloon and your positively-charged hair
two positively-charged objects
two objects that have the opposite charge
Using the Triboelectric Series here, a piece of glass is rubbed with paper. Which one is positive after they are rubbed together?
Glass
Paper
Both the glass and paper
Unable to determine without the mass of each item.
The magnetic ____________ around a bar magnet is shown above.
legs
flowers
field
direction
A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.
north
south
east
west
Certain materials respond to magnetic fields by becoming ______________ themselves. ____________ is one of these materials.
magnetic, Plastic
electronic, Iron
magnetic, Iron
electronic, Plastic
Although magnetic fields are _____________, one common way that people investigate them is to use ________ filings.
invisible, iron
touchable, iron
invisible, plastic
touchable, plastic
This picture is an example of a
longitudinal wave
transverse wave
Newtonian wave
#1 refers to the
wavelength
amplitude
crest
trough
What is the amplitude of this wave?
3
-3
6
4
