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WorksheetsFinal Exam
Total questions: 50
Worksheet time: 28mins
Which of these has the same acceleration as a car that goes from 10 m/s to 16 m/s in 3 seconds?
a motorcycle that goes from 15 m/s to 20 m/s in 4 seconds
a runner who goes from 7 m/s to 10 m/s in 3 seconds
a bird that goes from 4 m/s to 8 m/s in 2 seconds
a dog that goes from 8 m/s to 12 m/s in 3 seconds
What is the average speed of this car?
(a) m/s
Why is the light bulb not on, in this image?
the battery is used up
the bulb is burned out
the circuit is open
the circuit is closed
Electric current passing through a wire produces __________.
a compass
geographic poles
a permanent magnet
a magnetic field around the wire
An electric current is a flow of (a) from one place to another.
What kind of circuit has more than one path for current flow?
open
series
parallel
conducting
A long, thin wire has (a) resistance than a short, thick wire.
Electrical current is measured in __________.
volts
ohms
watts
amperes
How do insulators and conductors differ?
Conductors do not allow an electric current through them.
Insulators do not allow electrons to pass through them easily.
Insulators allow protons to pass through them.
Conductors allow protons to pass through them.
Electrons have what charge?
(a)
Which of the following is the law of reflection?
The angle of incidence is equal to the angle of reflection.
The angle of incidence is equal to the normal.
The angle of reflection is equal to the normal.
The normal is perpendicular to the reflecting surface.
A blue object looks blue because __________.
the blue object is opaque
The speed of a wave equals its wavelength multiplied by its _______.
The __________ of an electromagnetic light wave determines the color of the light.
Which of the following has the shortest wavelength?
radio waves
green light
The entire range of electromagnetic wave frequencies is known as __________.
magnetism
visible light
ultraviolet radiation
Electromagnetic waves are made by __________.
vibrating water molecules
vibrating electrical charges
strong compressions
vibrating air molecules
In which of the following mediums will sound travel fastest?
brick
air
water
oil
As frequency increases, wavelength __________.
Which occurs when the crest of one wave overlaps the trough of another wave?
The bending of a light wave as it moves from one medium into another is called __________ .
Which occurs when waves bend around a barrier?
Reflection occurs when a wave __________ .
causes ripples in a pool of water
compresses air particles as it travels
strikes an object and bounces off of it
bends and changes speeds as it travels
The __________ of a wave is how many wavelengths pass a fixed point each second.
Which is the distance from the top of one crest of a transverse wave to the top of the next crest in that wave?
In __________ waves, matter in the medium moves back and forth at right angles to the direction the wave travels.
Waves that use matter to transfer energy are called __________ waves.
Which is a repeating disturbance that transfers energy through matter or open space?
Which is a measure of the average kinetic energy of all the particles in an object?
During energy transformations, energy is never __________.
used to increase an object's potential energy
released as heat
completely transformed
What two factors determine how much potential energy an object has?
Mass and position
What two factors determine how much kinetic energy an object has?
Mass and speed
Which of the following objects has kinetic energy?
a bicycle parked at the top of a hill
a ball rolling across the floor
leaves lying on the ground beneath a tree
a sunny windowsill
As energy transformations occur within a system, the total energy of the system ________.
remains constant
increases
decreases
is transferred out of the system
What is the acceleration of this box?
(a) m/s2
In a tug of war, the team on the left pulls with a force of 430 N and the team on the right pulls with a force of 420 N. What is the net force on the rope?
(a) N to the left
Newton's third law of motion states that __________.
an object will remain at rest or keep moving in a straight line with constant speed unless a force acts on it
when a force is applied on an object, there is an equal force applied by the object in the opposite direction
acceleration is calculated by dividing the force exerted on an object by the mass of the object
the force on an object can be found by dividing its mass by its acceleration
Newton's second law of motion states that __________.
an object will remain at rest or keep moving in a straight line with constant speed unless a force acts on it
when a force is applied on an object, there is an equal force applied by the object in the opposite direction
the force on an object can be found by dividing its mass by its acceleration
acceleration is calculated by dividing the force exerted on an object by the mass of the object
What happens when unbalanced forces act on an object?
The object accelerates.
The net force is zero.
The object speeds up.
Friction becomes greater than the net force.
Which measures an object's tendency to resist changing its motion?
gravity
acceleration
mass
inertia
Newton's first law of motion states that __________.
an object will remain at rest or keep moving with a constant velocity unless a force acts on it
acceleration is calculated by dividing the force exerted on an object by the mass of the object
when a force acts on an object, its acceleration is in the same direction as the force
when a force is applied to an object, there is an equal force applied by the object in the opposite direction
Forces that cancel each other are called __________ forces.
The strength of the gravitational force between two objects depends on which of the following?
the mass of the larger object
the mass of the objects and the distance between them
the velocities of the objects
the orbits of the objects
Which is a force that resists motion between two surfaces that are in contact?
acceleration
friction
inertia
resistance
A(n) __________ is a push or a pull.
motion
acceleration
force
velocity
Which measures the quantity of matter of an object?
When something accelerates then stops accelerating, what happens to the object?
it slows
it continues to move at a constant velocity
it goes faster
it stops completely
What is the term for a change in velocity?
average speed
instantaneous speed
acceleration
speed
Which is distance divided by time?
Something is in motion if it __________.
changes position
changes state
changes properties
changes distance
