Speed Calculations
Potential and Kinetic Energy
Forces
Energy Transformations
Vocabulary
100
What is the formula for speed?
What is Speed = Distance / time
100
Name the 3 types of potential energy
What is Chemical, Gravitational, and Elastic potential energy
100
What is the formula for force.
What is Force =Mass x Acceleration
100
The law of conservation of energy describes how the amount of total energy can change in a closed system. Which of these statements correctly describes this law?
A.
The amount of kinetic energy in a system is a constant value.
B.
An object can have potential energy or kinetic energy, but not both at the same time.
C.
Energy can be converted from one form into another, but it cannot be created or destroyed.
D.
The amount of energy created when an object moves is equal to the energy destroyed when it stops moving.
What is C.
Energy can be converted from one form into another, but it cannot be created or destroyed.
100
This describes the speed over a stretch of time
What is average speed
200
A rollercoaster is traveling at a 125km per hour. How many km will it travel in 5 hours.
What is 25 km/h.
200
When the slingshot is held in position as in the diagram, what kind of energy is present?
What is elastic (potential) energy
200
In what direction does acceleration occur?
What is, in the direction of the net force
200
When a hand-held fan is turned on, the blades spin. In which order would energy be transferred?
Electrical ,Chemical, light
Electrical, Chemical ,kinetic
Chemical, Electrical, light
Chemical, Electrical, Kinetic
What is , Chemical, Electrical, Kinetic
200
The sum of all forces acting on an object
What is Net Force
300
For our Christmas trip, we traveled 540 miles in 9 hours. How fast were we traveling?
What is 60 mi/h.
300
According to the above diagram, at what point would the roller coaster car have the greatest potential energy?
What is 3
300
Which statement does the model NOT accurately represent?
A.)The forces on the box are acting in opposite directions.
B.)The two forces acting on the box are unequal.
C.) The box will move in the direction of the greater force.
D.) The two forces acting on the box are equal
What is D The two forces acting on the box are equal
300
A toy robot can walk and talk and runs on batteries. What type of energy is stored in the batteries?
What is Chemical Energy
300
ability to cause change
What is energy
400
To get to Grandma's house, I traveled over the river and through the woods at 81mi/h. It took me 3 hours to get to Grandma's house. How many miles did I travel?
What is 243 miles.
400
Two Great Snipe birds are migrating. Both birds have a mass of 100 grams and are flying at 90 kilometers per hour. Bird R is flying 2.0 km above the ground, and Bird Q is flying 2.5 km above the ground.
Based on the information above, which statement best describes the energy of the two birds?
A.)Bird Q and Bird R have the same kinetic energy and potential energy.
B.)Bird Q and Bird R have the same kinetic energy but different potential energy.
C.)Bird Q and Bird R have no kinetic energy but have the same potential energy.
D.)Bird Q and Bird R have the same potential energy but different kinetic energy.
What is What B
Bird Q and Bird R have the same kinetic energy but different potential energy
400
The tendency of an object to resist change in motion
What is inertia
400
A rock that falls off a cliff represents both potential and kinetic energy. What is the energy transformation involved in this scenario?
What is As the potential energy decreases, the kinetic energy increases.
400
What is change in motion?
What is Acceleration
500
Santa was traveling at a speed of 45 km/h. How long did it take Santa to travel 450 km?
What is 10 hours.
500
Which form of energy will the object gain when it is compressed?
What is mechanical
500
Increases as mass and speed increase
What is kinetic Energy
500
Which of the following is an example of electrical energy transforming into heat and and light?
A ) a car headlight
B.) the body digesting food
C.) particles vibrating to create sound
D.) rays of light from the sun reaching Earth
What is a car head light
500
Point of greatest or least energy (potential or kinetic)
What is position