Stored energy is referred to as __________ energy.
A. conserved
B. kinetic
C. thermal
D. potential
D. potential
A roller coaster car at the top a hill has 30 Joules (J) of potential energy and 0 J of kinetic energy. At the bottom of the hill, the car has 30 J of kinetic energy and 0 J of potential energy. Which principle does the roller coaster car demonstrate?
A. Conservation of energy
B. Conservation of mass
C. Conservation of gravity
A. Conservation of energy
A golf ball sitting on a tree has...
potential energy
When an object falls, the gravitational potential energy __________ as the kinetic energy increases.
A. increases
B. decreases
C. remains the same
D. you cannot determine this without knowing the mass
B. decreases
Which of the following correctly describes the changes in energy for a roller coaster car as it rolls down a hill?
A. Kinetic energy increases and potential energy decreases.
B. Kinetic energy decreases and potential energy increases.
C. Kinetic energy increases and potential energy does not change.
A. Kinetic energy increases and potential energy decreases.
It's also why we stay on the ground...
Which graph shows how PE and KE flow with objects falling from a building?
*Refer to the whiteboard
A
Which of these has gravitational potential energy?
A. A pocket of methane gas
B. A skier at the top of a mountain
C. A turning gear in a bicycle
B. A skier at the top of a mountain
What has more kinetic energy:
1. A car with a mass of 3000kg traveling at 20 mph
2. A truck with a mass of 10,000kg traveling at 20 mph
2. A truck with a mass of 10,000kg traveling at 20 mph
Which graph shows how PE and KE flow in a pendulum?
*Refer to the whiteboard
C
What happens to a moving car that experiences an increase in kinetic energy?
A. Its height decreases.
B. Its speed decreases.
C. Its speed increases.
C. Its speed increases.
These two variables determine an object's Kinetic and Potential energy
mass and velocity (weight & speed)
Which graph shows how PE and KE flow on a roller coaster?
*Refer to the whiteboard
B
What happens to the total energy (the sum of KE and PE) of a roller coaster, a pendulum or an object as it falls?
A. Increases
B. Decreases
C. Stays constant
C. Stays constant