WorksheetsUnit 8 & 9 Review
Total questions: 15
Worksheet time: 26mins
Where can you see convection happening in this picture?
Boiling Water
The fire
The rocks
The pot
Kinetic energy is energy ____________.
on fire
at rest
in motion
with a cold
Using the formula KE=1/2mv2 calculate the following:
Calculate the kinetic energy of a 50 Kg runner running 10 m/s.
250 J
500 J
2500 J
5000 J
A roller coaster cart at the top of a hill has 600 J of PE and 0 J of KE. At the bottom of the hill, the cart has 0 J of PE and 600 J of KE. This is an example of
Conservation of Energy
Conservation of Momentum
Wildlife Conservations
Roller Coaster Conservation
Where should the ball be placed to have the most potential energy
D
C
B
A
Three students decided to test thermal heat transfer in different ways.
Student A used boiling water in a pan with a thermometer in the water.
Student B used a crockpot filled with stones.
Student C used a cookie sheet and placed it in the hot sun.
What type of thermal transfer was each student studying>
A- Convection, B- Conduction, C- Radiation
A - Radiation, B-Convection, C-Electrical
A- Radiation B- Conduction, C- Convection
A- Convection, B- Radiation, C- Conduction
Which of the following activities are examples of kinetic energy?
A toy boat floating across a pond
A child standing at the top of the slide
A girl chasing a soccer ball
A boy holding a basketball.
Are the following examples of what kind of energy?
A mattress spring being compressed (elastic)
A lamp hanging from the ceiling (gravitational)
A photosynthesizing plant (chemical)
A car climbing a hill (gravitational)
An alkaline battery (chemical)
Kinetic
Potential
Electrical
Mechanical
Which of the following activities around campus would be classified as having potential energy?
A ball rolling across the gym floor.
An orange chemical in a beaker in the lab
A teacher walking down the hall
A book sitting on a book shelf
A 6 Kg cat is sitting on the ground. How much gravitational potential energy does the cat have?
0 J
58.8 J
29.4
Not enough information given
A student puts moist soil in a bottle and sets the bottle under a lamp. After a while, she observes that there are water droplets on the sides of the bottle. What happened?
Radiant energy from the lamp heats up the air in the bottle, which then heats the water in the soil by conduction. The heated water then conducts up the sides of the bottle.
Radiant energy from the lamp warms the soil, causing water to evaporate from the moist soil. The water vapor moves in the bottle by convection.
Radiant energy from the lamp warms the soil, causing water to evaporate from the moist soil. The water vapor moves in the bottle by conduction.
Radiant energy from the lamp heats up the air in the bottle, which heats the water in the soil by convection. The heated water then conducts up the sides of the bottle.
Felicia attached one end of a spring to the table and attached a 5 gram (g) weight to
the other end, stretching the spring. Which of the following describes the potential
energy in the system?
The spring has elastic potential energy and the weight has gravitational potential energy.
The spring has chemical potential energy and the weight has elastic potential energy.
The spring has gravitational potential energy and the weight has chemical potential energy.
The spring has chemical potential energy and the weight has gravitational potential energy.
Which of the following is true about point S?
The total energy at point S is equal to twice the total energy of the system because new energy is created as the potential energy increases.
The total energy at point S is equal to the total energy of the system because energy has been transformed as the kinetic energy decreases.
The total energy at point S is equal to half of that of the total system because all the potential energy has been destroyed.
The total energy at point S is equal to half of that of the total system because all the kinetic energy has been destroyed.
Which of the following correctly shows how the air will move over this location?
Put in order from greatest to least amount of potential energy.
ABCD
DABC
DACB
BCAD
