Forces and Friction
This is the definition of force
What is a push or pull on an object?
This is Newton’s First Law of Motion
What is: an object in motion stays in motion, and an object at rest stays at rest unless acted upon by an unbalanced force? (Inertia)
This is the formula for kinetic energy
What is KE = 1/2mv2 ?
This is the definition of gravitational force
What is: a force that pulls objects toward each other?; The force of attraction between two objects due to their masses.
This is the independent variable in an experiment where a student wanted to find out how the amount of water a plant receives affects the number of leaves on the plant
What is the amount of water?
This is the definition of friction
What is force that opposes motion between two surfaces in contact?
This is Newton’s Second Law of Motion
What is force equals mass times acceleration?
(More mass, less acceleration; more force, more acceleration)
This is what happens to kinetic energy when you increase the mass of an object
What is: kinetic energy increases?
This is how mass affects gravitational force
What is: As mass increases, gravitational force increases; Greater mass results in a stronger gravitational force?
This is the dependent variable in an experiment where a student wanted to find out how the amount of water a plant receives affects the number of leaves on the plant
What is the number of leaves on the plant?
This is one way to reduce friction
What is use lubrication, smoother surfaces, or reduce weight, add wheels etc...?
This is Newton’s Third Law of Motion
What is "for every action, there is an equal and opposite reaction"?
This is what happens to kinetic energy when you decrease the mass of an object
What is: Kinetic energy decreases?
This is what happens to gravitational force when the mass of one object increases
What is: gravitational force increases?
The independent and dependent variables go on these axes (identify which goes where)
IV: x-axis
DV: y-axis
This is one way to increase friction
What is use rougher surface, increase the weight of the object, remove wheels, etc...?
This is the force of an object that has a mass of 10 kg and an acceleration of 2 m/s²
What is 20 N?
This is how increasing height affects potential energy
What is: potential energy increases because it is proportional to height?
This is what happens to gravitational force when the distance between two objects increases
What is: gravitational force decreases?
These are the ranges for the amount of water and number of leaves on a plant (shown in the provided data table)
What is?
Amount of water: 50-250 mL
Number of leaves on a plant: 0-24
This is what happens to the movement of an object when it collides with another object of equal force
What is no movement; the forces are balanced?
After calculating the net force, this is how you determine the direction of an object’s movement
What is the direction of the movement is in the direction of the net force; the direction with the greater force?
This is the relationship between speed and kinetic energy
What is: As speed increases, kinetic energy increases?; Direct relationship
This is how distance affects gravitational force
What is: as distance increases, gravitational force decreases (& vice versa)?
These are appropriate intervals for the amount of water and number of leaves on a plant (shown in the provided data table)
What is?
Amount of water: 50
Number of leaves on a plant: 6