Friction is a force that
A) Opposes motion
B) Produces speed
C) Stores energy
D) Increases motion
A) Opposes motion
Which term describes a way electrical energy can move from place to place?
A) By remaining in place
B) Through light
C) By moving objects
D) Through electrical currents
D) Through electrical currents
Most of the energy used in the United States comes from _
A) Wind Energy
B) Renewable Energy
C) Solar Power
D) Nonrenewable Sources
D) Nonrenewable Sources
Lightening would be an example of -
A) Thermal energy
B) Radiant energy
C) Mechanical energy
D) Electrical energy
D) Electrical energy
Any push or pull that causes an object to move, stop, or change speed or direction is called-
A) Kinetic energy
B) Friction
C) A force
D) The speed
C) A force
When energy is moved from one place to another, it is-
A) Destroyed
B) Transferred
C) Conserved
D) Created
B) Transferred
Hydroelectric power produces energy using-
A) Coal
B) Sunlight
C) Wind
D) Moving water
D) Moving water
A student put 6 ice cubes into warm tea at 4:00pm. At 4:15pm the student checked the tea and observed that it was cool and refreshing. Which describes the thermal energy transfer?
A) Heat was absorbed by the tea
B) Heat moved from the tea to the ice
C) Heat moved from the ice to the tea
D) Heat was created by the ice
B) Heat moved from the tea to the ice
What is the combination of all the forces acting on an object called?
A) Total force
B) Combined force
C) Motion force
D) Net force
D) Net force
Some construction workers get bad sunburns working outside all day. They hired an engineer to design a solution to this problem. Which energy form does the engineer need to understand?
A) Mechanical
B) Electrical
C) Heat
D) Radiant
D) Radiant
What challenges might engineers face when designing ways to harness wind energy?
A) Towers are cheaper than they were 25 years ago
B) Some dams can harm the environment
C) Spinning turbine blades can be very noisy
D) Some days are cloudy and there is no sunlight
C) Spinning turbine blades can be very noisy
If I turn the handle of the screwdriver, then the screw will move in the direction of the force.
This hypothesis is an example of
A) conservation
B) Energy forms
C) Work
D) Transformations
C) Work
If a ball has more mass, then I will be able to throw it farther.
What is the scientist investigating with this hypothesis?
A) The distance the ball travels
B) The mass of the ball
C) The size of the ball
D) The type of ball
A) The distance the ball travels
You are watching a local high school football game. Someone says the players on the field are displaying motion energy. You share your scientific knowledge and say the form of energy is called-
A) Radiant
B) Mechanical
C) Sound
D) Thermal
B) Mechanical
Which will take the longest to occur?
A) Collecting sunlight in solar panels
B) Forming new fossil fuels
C) Converting wind power into electricity
D) Growing new trees after a fire
B) Forming new fossil fuels
Fossil fuels such as coal, oil, and natural gas are formed -
A) Deep underground
B) From the sun's rays
C) On the earth's surface
D) By the ocean's waves
A) Deep underground
When a truck collides with a car, the energy from the truck will transfer to the car. That energy transfer can change the car's-
A) Friction and speed
B) Gravity and direction
C) Air resistance and speed
D) Speed and direction
D) Speed and direction
Each morning a teacher makes a pot of coffee and usually makes more than what is needed. The teacher purchased a new pot that has clearly marked measurements. How will that new pot help conserve energy?
A) The silver pot will use solar energy instead of electrical
B) The kettle will transform thermal to radiant energy
C) With accurate measurements, the teacher will make the right amount of coffee and use less electrical energy
D) A new pot will make coffee at a slower rate and use more electrical energy
C) With accurate measurements, the teacher will make the right amount of coffee and use less electrical energy
A) Resources renewal
B) Natural disasters
C) Reduce, reuse, recycle
D) Nonrenewable energy
A) Resources renewal
A) Wood
B) Ice
C) Carpet
D) Wet floors
C) Carpet