WorksheetsPhysics I Final - Estrada 2021
Total questions: 80
Worksheet time: 41mins
Two asteroids orbiting each other, their centers are 36 m apart. The mass of asteroid m1 is ten million kg. The m2 is 4 million kg. G = 6.673 x 10-11. Calculate the force F.
2.06 N
74.0 N
0.206 N
206 N
True or false "a person on the surface of the Earth will have a different weight from a person in the international space station.
True
False
Doubling the distance between the earth and the moon
Force would decrease
Force would increase
Force would remain same
Why don't we feel the attractive force of gravity between ourselves and other small objects?
The gravitational force they exert on each other is so extremely small we do not notice it
Small object to not emit a gravitational force
The gravitational force is temporary and can only be felt during a solar eclipse
There is no such thing as gravity
When you drop a rock from a cliff, which of the following happens?
The rock and the Earth fall towards each other
Only the rock falls to the Earth
Only the Earth falls up to meet the rock
Nothing
Two spheres exert a gravitational attraction on each other. Which of the following changes to this system would reduce the gravitational attraction by one half?
Reducing by half the mass of one sphere only
Cutting in half the distance between the spheres
Doubling the distance between the spheres
Doubling the mass of both spheres
Inverse square law
Explains why forces decrease in strength as distance increases.
A region around a charged particle or object within which a force would be exerted on other charged particles or objects
May be positive, negative, or neutral; can be present on subatomic particles, atoms, or molecules; causes the object to interact with electromagnetic fields or other charged particles
A force of attraction between two masses
Field Forces
Forces that act over a distance, such as gravity
A region around a charged particle or object within which a force would be exerted on other charged particles or objects
May be positive, negative, or neutral; can be present on subatomic particles, atoms, or molecules; causes the object to interact with electromagnetic fields or other charged particles
the space around a magnet where the force of a magnet can act
Electric Field
A region around a charged particle or object within which a force would be exerted on other charged particles or objects
A force created by the interaction of stationary electric charges
The law stating that every piece of matter is attracted to every other piece of matter; the force is directly proportional to their masses but inversely proportional to the square of the distance between them.
the space around a magnet where the force of a magnet can act
Electrostatic Force
A force created by the interaction of stationary electric charges
A force of attraction between two masses
The law stating that every piece of matter is attracted to every other piece of matter; the force is directly proportional to their masses but inversely proportional to the square of the distance between them.
SI unit of electric charge
Inverse square law
gravitational force between two objects increases as the mass increases and decreases as the distance increases.
May be positive, negative, or neutral; can be present on subatomic particles, atoms, or molecules; causes the object to interact with electromagnetic fields or other charged particles
Forces that act over a distance, such as gravity
SI unit of electric charge
Coulomb
SI unit of electric charge
The interaction between a charged particle and an electromagnetic field or between two charged particles
A force created by the interaction of stationary electric charges
May be positive, negative, or neutral; can be present on subatomic particles, atoms, or molecules; causes the object to interact with electromagnetic fields or other charged particles
What is the unit for force?
Newton (N)
Kilogram (kg)
Meter (m)
pounds (lb)
__________________ is the point closest to the Sun in the orbit of a celestial body.
Perihelion
Aphelion
Elliptical
Electrostatic
How are gravitational force and electrostatic force are similar?
both involve two objects and both have the square of the distance on the bottom.
The constants are same
Both involve only one object
Nothing is the same
How are the equations for gravitational force and electrostatic force are Different.
The constants are different, gravitation uses mass, and electrostatics use charge.
Gravitation use charges and electrostatics uses mass
Distance is squared for gravitation but not for electrostatic
They are not different
What is the main idea behind Kepler’s second law?
Equal area in equal time
All planets have elliptical orbits
Ratio between the area and time
Ratio between time and distance
What are the shapes of the orbits of the planets according to Kepler's first law?
Planets move in Elliptical orbits around the sun, with the sun at one focus.
Planets move in Circle orbits around the sun, with the sun at one focus.
Planets move in Elliptical orbits around the sun, with the Moon at one focus.
Planets move in Circle orbits around the sun, with the Moon at one focus.
What happens to Earth’s orbit when it gets closer to the Sun.
Gravity is Greater causing Earth to Speed Up in its orbit
Gravity is Greater causing Earth to Slow down in its orbit
Gravity is Weaker causing Earth to Speed Up in its orbit
Gravity is Weaker causing Earth to Slow down in its orbit
The Law of Gravitation states that between any two object there is an attractive force proportional to the product of the two __________ ?
Masses
Distance
Forces
Newtons
Which area would the planet have the Fastest speed in its orbit?
Area c - d
Area a - d
The speed would be the same for both
It is impossible to know a planets orbital speed.
What would happen to the electrical force between two charged particles if the distance between the two particles were doubled.
The electrical force would be only one-fourth as strong
The electrical force would be only one-half as strong
The electrical force would be twice as strong
The electrical force would be four times as strong
How Coulomb’s law is similar to Newton’s law of gravitation?
They have similar formulaic structure
They use the exact same constant
They both depend on mass
They both depend on charges
Calculate the magnitude of the gravitational force between Building X and Building Y, using the following information: Building X has a mass of exactly 1.0 x 10^7 kg, Building Y has a mass of exactly 5 x 10^6 kg. Their centers are located exactly 1,000 m apart.
0.00803 N
33.35 N
0.003 N
.008 N
A gravitational field is generated by any object that has...
mass
magnetism
conductivity
personally
electromagnetic energy
A form of energy that travels through space as waves (visible light and other form of electromagnetic radiation).
A system is an object or collection of objects defined as those being studied.
The ratio of the amount of energy expended in the form you want to the total amount of energy that is introduced into the system
the law that states that energy cannot be created or destroyed but can be changed from one form to another
kinetic energy
energy of motion
A system in which no matter is allowed to enter or leave
Potential energy that depends on the height of an object
A system is an object or collection of objects defined as those being studied.
Power
the rate at which work is done
Potential energy that depends on the height of an object
A system is an object or collection of objects defined as those being studied.
A form of potential energy that is stored in chemical bonds between atoms.
System
A system is an object or collection of objects defined as those being studied.
A result of a force moving an object a certain distance. (force * distance)
a system in which exchanges of matter or energy occur across system boundaries
potential energy of an object that is stretched or compressed
Joule (J)
SI unit of energy
is the total energy, or the sum of potential and kinetic energy, in a system
Energy caused by the movement of electrons.
a system in which exchanges of matter or energy occur across system boundaries
chemical energy
A form of potential energy that is stored in chemical bonds between atoms.
energy of motion
the rate at which work is done
A system in which no matter is allowed to enter or leave
Energy
The ability to do work or cause change
the law that states that energy cannot be created or destroyed but can be changed from one form to another
The potential energy stored in the nucleus of an atom
energy of motion
work
A result of a force moving an object a certain distance. (force * distance)
is the total energy, or the sum of potential and kinetic energy, in a system
the law that states that energy cannot be created or destroyed but can be changed from one form to another
Potential energy that depends on the height of an object
potential energy
stored energy
Energy caused by the movement of electrons.
A form of energy that travels through space as waves (visible light and other form of electromagnetic radiation).
the rate at which work is done
What is the form of energy goes into a fossil fuel power plant?
chemical energy
kinetic energy
radiant energy
wind
What determines whether or not an energy sources is efficient?
The amount of energy "lost" during transitions determines efficiency. The less energy that is changed to heat, the more efficient the source.
the amount of energy created. If more energy is created from the amount of starting energy.
If the energy sources is less expensive.
If the energy source is good for the environment.
When frequency increases, the length of the wavelength ______________ .
decreases
increase
stays constant
increases exponentially
A wave’s energy is __________ related to its frequency.
directly
indirectly
not related
squared
The process of converting an atom or molecule into an ion by adding or removing charged particles
Ionization
refraction
reflection
interference
Gamma rays
Fundamental particle carrying a quantum of energy
Radiation resulting from nuclear decay
Energy in the form of magnetic and electric waves that is able to travel with or without a medium
Arrangement of wave types based on wavelength and frequency
Addition or removal of an electron
What is the relationship between frequency and wavelength?
As the frequency increases, the wavelength decreases. Indirect relationship.
As the frequency increases, the wavelength increases. Indirect relationship.
As the frequency increases, the wavelength decreases. Direct relationship.
As the frequency increases, the wavelength increases. Direct relationship.
Which of the follow is true about mechanical waves
requires a medium to travel
can move as longitudinal wave and transverse wave
transmit energy
all answers are correct
What is correct about lower frequencies waves?
They penetrate deeper than higher frequencies waves
They can be heard by people
The images they render are more detailed
They have more unwanted effects
White objects reflect all colors of light and black objects absorb all colors of light.
True
False
What is the amplitude of this wave?
4
5
1
2
A disturbance that transfers energy from place to place
wave
amplitude
frequency
medium
matter through which a wave travels
wave
amplitude
frequency
medium
Horizontal distance between the crests or between the troughs of two adjacent waves
wavelength
mechanical wave
electromagnetic waves
electromagnetic spectrum
the bending of a wave as it enters a new medium at an angle
ionizing radiation
non-ionizing radiation
Reflection
Refraction
What are the units for wavelength λ
m/s
Hz
m
s
What are the units for frequency (f)
m/s
Hz
m
s
What is the wavelength and amplitude of these wave?
Wavelength = 2.6, amplitude = 1
Wavelength = 1, amplitude = 2.6
Wavelength = 8 amplitude = 1
Wavelength = 1 amplitude = 8
How many waves are shown?
1
2
3
4
Which form of electromagnetic wave is the most ionizing?
Gamma rays
Visible light
microwaves
radio waves
A dragon fly flaps its wings up and down 175 times every 1.5 seconds. The frequency of the wing flap is _____ Hz.
70 Hz
80 Hz
120 Hz
50 Hz
The speed of sound in air is roughly 340m/s. What is the wavelength of sound waved produced by a vibrating string with a frequency of 460Hz?
0.74 m
1.35 m
0.74 Hz
1.35 Hz
which of the following would LIGHT waves travel the FASTEST?
steel
liquid water
empty space
earth's atmosphere
which of the following would Sound waves travel the FASTEST?
steel
liquid water
empty space
earth's atmosphere
What type of wave is X?
longitudinal wave
transverse wave
Which wave has the highest energy?
Which wave has the shortest wavelength?
A wave with a frequency of 0.162Hz and a wavelength of 8.5cm travels through a medium. What is the velocity with which this wave travels?
0.014 m/s
0.014 Hz
1.38 m/s
1.38 Hz
The speed of sound in air is roughly 340m/s. What is the wavelength of sound waved produced by a vibrating string with a frequency of 460Hz?
0.74 m
1.35 m
0.74 Hz
1.35 Hz
Which is the correct label for B
wavelength
crest
trough
refraction
Which is the correct label for A
wavelength
crest
trough
refraction
Coulomb's Law
A law describing the electrostatic force of interaction between charged particles based on the strength of the charges and the distance between the particles
A force created by the interaction of stationary electric charges
A force of attraction between two masses
Forces that act over a distance, such as gravity
What is the unit for force?
Newton (N)
Kilogram (kg)
Meter (m)
pounds (lb)
Thee laws that define the motion of orbiting celestial objects
Kepler’s laws
Eccentricity
Orbit
Gravity
____________________ explains why gravitational forces decrease in strength as distance increases.
Inverse Square Law
Electric
Perihelion
Elliptical
Find the electrostatic force between two protons that are 2.0 m apart. The elementary charge of a proton is 1.602 x 10-19 C.
5.8 x 10-29 N
5.8 x 10-19 N
.58 x 10-29 N
.58 x 10-19 N
How are the equations for gravitational force and electrostatic force are Different.
The constants are different, gravitation uses mass, and electrostatics use charge.
Gravitation use charges and electrostatics uses mass
Distance is squared for gravitation but not for electrostatic
They are not different
Where would the force of gravity be greater on the top of Mount Everest or at the bottom of the Mariana Trench?
Mariana Trench
Mount Everest
Doubling the distance between the earth and the moon
Force would decrease
Force would increase
Force would remain same
Energy is...
The ability to do work or generate heat
he comparison of the amount of energy or product produced with the amount of energy or product put in.
Anything that does not interact with its surroundings
Changing from one form of energy to another
Energy conversion
Changing from one form of energy to another
Anything that does not interact with its surroundings
The ability to do work
Present int objects that are in motion
