Kinetic Energy
When is kinetic energy the lowest?
When potential energy is the highest
At what point is the potential energy of an object the highest?
At the highest point of the object or when the kinetic energy is the lowest
The law on Conservation of Energy says?
Energy cannot be created or destroyed, only changed
This variable is the variable that changes in an experiment
The independent variable
On a rollercoaster, when is the potential energy the lowest?
When the car gets to the bottom of the hill
When is kinetic energy the highest?
At the fastest the object travels
At what point is the potential energy of an object the lowest?
When the kinetic energy is the highest
If I were to throw a ball, how is the energy being converted?
Potential energy when the ball is sitting in my hand, to kinetic energy when I throw it.
Grace is bringing treats to her class on her birthday. The number of treats she brings is based on the number of students in her class.
Which of the variables is independent?
number of students
On a rollercoaster, where is the potential energy the highest?
At the top of the hill, before you go over.
An object with more mass and more speed has higher or lower kinetic energy?
More Kinetic Energy
If a ball is throw into the air, where is the highest potential energy found?
At the top point where the ball stops going higher.
Scientific laws, hypotheses, and theories are all part of the _____ process.
Scientific
This variable is the result of chnages in the experiement?
The dependent variable
On a rollercoaster, how can we determine the amount of gravitational potential energy the car has at the top of the hill?
By using the mass and the height of the car to calulating the potential energy at the top of the hill.
A semi-truck and a tesla are traveling down 95 going the sam speed, who would have more kinetic energy?
The truck, because it has more mass
Gravitational potential energy of an object depends on what?
The Mass and Height of an object
In order for a hypothesis to be proven, a scientist need to have what?
Evidence
Britney is planting seeds. The number of flowers she grows is related to the number of seeds she plants. Which is the independent variable?
Number of seeds
The faster the rollercoaster the faster the what is?
Kinetic energy
What is needed to calculate the kinetic energy of an object?
Mass and Speed
What is needed to calculate the mechanical energy of an object?
Potential energy + Kinetic Energy
Like scientific knowledge, scientific theories can ___________ over time?
Evolve
Ty earns $12 per hour. How much money, m, does he earn on a shift of h hours? Identify the dependent variable.
money
Which would have more kinetic energy, a rollercoaster with two cars, or a rollercoaster with 5 cars, why?
5 cars, because it has more mass