WorksheetsMidterm Revision
Total questions: 40
Worksheet time: 27mins
Which of the following correctly identifies a method of heat transfer that will happen in this situation?
Heat will be transferred from the hot plate to the thermometer through radiation.
Heat will be transferred from the beaker to the thermometer through convection.
Heat will be transferred from the hot plate to the beaker through convection.
Heat will be transferred from the thermometer to the beaker through conduction.
Radiation is a method of thermal energy transfer. It refers to the transfer of heat energy that moves–
through empty space.
when objects touch.
only through solids.
in the motion of fluids.
Conduction can only occur between two objects when–
one object is less dense than the other.
both objects are in physical contact with each other.
one of the objects is made of a metal.
both objects are exactly the same temperature.
Which of the following is an example of a situation in which an egg is receiving thermal energy through convection?
Which of the following is an example of a situation in which an egg is receiving thermal energy through convection?
An egg is fried in a metal pan on the stove.
An egg cracked on a hot sidewalk starts to cook.
The egg is cooked in a pot of water on the stove.
A student is melting a sugar cube over a flame, as shown in the picture provided. What energy transfer is causing the sugar cube to melt?
Candle to spoon – conduction
Spoon to sugar cube – conduction
Candle to spoon – radiation
Spoon to sugar cube – conduction
Candle to spoon – conduction
Spoon to sugar cube – convection
Candle to spoon – convection
Spoon to sugar cube – conduction
When ice cubes melt in a glass of water, a current forms in which heat moves from particles with more heat to particles with __________________ heat.
more
equal
less
True or False. Energy cannot be created or destroyed, rather it is transformed from one energy type to another.
True
False
Energy stored because of gravity is called:
Gravitational Potential Energy
Kinetic Energy
Mechanical Advantage
Chemical Energy
At which point does the ball has the greatest gravitational potential energy (GPE)?
A
G
D
C
G
How could you increase the gravitational potential energy of an object without changing its mass and gravity?
Make the object larger
Lower the object towards the ground
Raise the object farther off the ground
Allow the object to roll on the ground
____________ is the ability to do work.
Energy
Force
Friction
Motion
Which is the correct unit for expressing gravitational potential energy?
Joule
Newton
m/s2
meter
Which of the following is the correct equation for calculating an object's gravitational potential energy?
PE = mgh
PE = mg / h
PE = mg + h
PE = gh
What is the unit for mass?
kilogram (kg)
meter (m)
Newton (N)
Joule (J)
What is the unit for distance?
kilogram (kg)
meter (m)
Newton (N)
Joule (J)
Which of the following is the best example of work being done.
doing homework
lifting a box
pushing a stationary box
holding a box
You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?
Yes, work was done
No, work wasn't done
What would you solve for if given time and work?
power
force
distance
work
You do work only when you exert a force on an object and move it
What is the unit for power?
what
watt
joule
Jewel-Osco
What is the correct equation for gravitational potential energy
m x g x h
m x g / h
m x h / g
What is the correct equation for kinetic energy
1/2 x m x v2
m x v2
1 / 2 x v x m2
It is the rate of doing work or is work per unit of time.
Power
Energy
Motion
Work
