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WorksheetsFinal quiz science
Total questions: 24
Worksheet time: 12mins
What is gravity?
a non contact force
a contact force
a magnetic force
a frictional force
Melanie watched the path a baseball followed after a pitcher threw it. She noticed that the ball traveled horizontally away from the pitcher as well as downward toward the ground. What force caused the ball to accelerate in the downward direction when it was thrown?
air resistance
applied force
gravitational force
electrical force
Why is the friction force considered to be a contact force?
Friction is produced when objects slide past one another.
Friction always acts in the same direction.
Friction acts in a direction opposite to the direction of an object’s motion.
Friction affects only solid objects.
Why is the magnetic force considered to be a noncontact force?
Magnets must be far apart in order to exert a force.
Magnets must be large in size in order to exert a force that is strong enough to notice.
Magnets do not have to touch each other to experience a force.
A bird flies at 12.5 meters per second. The wind speed is 4.5 meters per second.
What is the speed of the bird when it flies with the wind?
17 meters per second
12.5 meters per second
8 meters per second
4.5 meters per second
Predict how the box will move.
(a)
A ball is sitting at the top of a ramp. As the ball rolls down the ramp, the potential energy of the ball decreases. What happens to the potential energy as the ball moves?
It is destroyed as the ball moves.
It is lost as gravitational energy.
It is used to make the ball slow down.
It is converted to kinetic energy.
A toy robot can walk and talk and runs on batteries. Which type of energy is stored in the batteries?
mechanical
nuclear
chemical
electrical
How is mechanical energy calculated?
by adding potential energy and kinetic energy
by multiplying potential energy and kinetic energy
by subtracting potential energy from kinetic energy
by dividing potential energy by kinetic energy
Which of these is an example of the conversion of kinetic energy into gravitational potential energy?
a person parachuting out of an airplane
a person skiing down a hill
a car racing around an oval track
a person walking up a hill
Which term describes the energy that is stored due to the height of an object above the ground
kinetic energy
mechanical energy
chemical energy
gravitational potential energy
If a monkey at the top of a tree climbs halfway down the tree, how does its potential energy compare to its original potential energy?
It would be a fourth of what it was
It would be the same
It would be doubled
It would be half of what it was
What type of energy is running?
Kinetic
Chemical
Thermal
Potential
Walking on the hot sand on a beach is an example of...
Radiation
Conduction
Convection
Increasing temperature ___________ thermal energy.
increases
doesn't affect
decreases
A ceiling fan forcing the warm air downward is an example of...
Convection
Conduction
Radiation
Feeling heat from a campfire is an example of...
Radiation
Convection
Conduction
Chocolate candy melting in your hand is an example of...
radiation
conduction
convection
Air in the atmosphere rising and falling is an example of...
convection
conduction
radiation
Heat from the sun warming a swimming pool is an example of...
convection
radiation
conduction
This force occurs when there is an attractive and repulsive force between two poles.
Electric
Magnetic
This force occurs when ions create attractive and repulsive forces.
electric
magnetic
The area around an electric charge that experiences the force exerted by the electric charge.
electric poles
electric field
electric force
electric charge
When it is winter, the United States receives the least direct solar energy, as compared with the rest of the year. Why does this happen?
The Northern Hemisphere is tilted away from the sun.
The Northern Hemisphere is tilted toward the sun.
The Northern Hemisphere is closer to the sun.
The Northern Hemisphere is farther from the sun.
