Vocab
What is force?
Stored Energy.
What is Potential Energy?
True or False.
Contact forces do not need to be touching.
False.
Mechanical Energy is the total of what?
Potential and Kinetic Energy
Energy in a rubber band or stretchy objects.
A force by direct contact.
True or False.
Potential Energy increases the closer the object is to the ground.
False.
DAILY DOUBLE.
Change this phrase correctly for double the points.
A static shock is what type of force?
Electrical Force
This force opposes motion in a certain direction.
What is Frictional Force?
True or False.
Total Energy of an object can change.
False.
A force acting from a distance.
What is a Non-Contact Force?
A roller coaster moving towards the top of the track is what energy transfer?
Kinetic energy into gravitational potential energy.
What primary force is responsible for the motion of water on a waterfall?
Gravitational Force
DAILY DOUBLE.
Name what type of force is Gravitational Force for double the points.
True or False.
Energy can change form, but energy can never change in total amount.True.
A ________________is a place or object used for comparison to determine if something is in motion.
reference point
Energy cannot be created nor destroyed, only transferred.
What is the Law of Conservation?
Fill in the blank:
Potential energy is affected by _______, while kinetic energy is affected by ________.
Potential energy is affected by HEIGHT above the ground, while kinetic energy is affected by SPEED.
A ball rolls down from the top of a grassy hill, reaches the bottom of the hill, continues to roll and then slows down and then stops. What forces are acting on the ball?
Gravity and Frictional Force.
An object at rest tends to stay at rest, and an object in motion tends to stay in motion, with the same direction and speed without being applied a force.
Newtons Law of Motion
Tensional Force is a what kind of force?
Contact Force
The sum of all forces.
What is Net Force?
Energy an object possesses because of its position in a gravitational field.
What is Gravitational Potential Energy?
An object is being blown away with a force of 100 N and opposed by a friction of 50 N. What is the Net Force of the object?
50 N
Define the Law of Conservation.
Energy cannot be created nor destroyed only transferred.
Seedlings exerting an upward pushing force on the soil.
What is Plant Growth?