Kinetic Energy
What is Kinetic Energy?
Energy due to motion
What is potential energy?
Energy stored in an object due to its position or state
Thermal energy is related to
The motion of molecules
An exothermic reaction is one that
releases heat to the surroundings
An endothermic reaction is one that
Absorbs heat from the surroundings
What factors directly affects kinetic energy?
mass & velocity
Which of these situations represents potential energy?
a) A roller coaster at the top of a hill
b) A ball rolling down a hill
c) A car accelerating on a highway
d) A light bulb shining
A roller coaster at the top of a hill
What happens to thermal energy as the temperature of an object increases?
It increases
Which of the following is an example of an exothermic reaction?
a) Melting ice cubes
b) Boiling water
c) Burning wood
d) Photosynthesis
Burning Wood
Which of the following is an example of an endothermic reaction?
a) Freezing water
b) Evaporation of water
c) Combustion of fuel
d) Condensation of steam
Evaporation of water
If an object's velocity is doubled, its kinetic energy will?
Quadrupled
What happens to potential energy when the height of an object increases?
Increases
Which of the following is an example of heat transfer through conduction?
a) Warm air rising to the ceiling
b) A metal spoon heating up in a hot bowl of soup
c) Heat from the sun warming your skin
d) Boiling water circulating in a pot
A metal spoon heating up in a hot bowl of soup
In an exothermic reaction, the temperature of the surroundings typically
Increase
In an endothermic reaction, the temperature of the surroundings typically
Decreases
Which of these objects has the most kinetic energy?
a) A stationary car
b) A car moving at 30 mph
c) A car moving at 60 mph
d) A car moving at 10 mph
A car moving at 60 mph
The formula for gravitational potential energy is:
PE = mgh
Thermal energy flows from
Warmer objects to cooler objects
The energy change in an exothermic reaction is
Negative
What is the energy change in an endothermic reaction?
Positive
What month is Ms. Jenkins Birthday
April
How many Siblings do Ms. Jenkins Have
What is Ms. Jenkins favorite team?
Miami Heat
What trailride team is MS. Jenkins apart of
WSR
What is Ms. Jenkins Favorite Color
Red