NC Standards
PSc.1.2.1
•Recognize that the weight of an object is a measure of the force of gravity and is the product of its mass and the acceleration due to gravity:Fg = mg
•With negligible air resistance, explain acceleration due to gravity as an example of uniformly changing velocity: g = 9.8 m/s2
•Relate the presence of air resistance to the concept of terminal velocity of an object in free fall.
PSc. 1.2.2
•Identify friction as a force that opposes motion of an object.
•Classify the frictional forces present in a situation as static, sliding, rolling, fluid.
PSc. 1.2.3
•Explain the property of inertia as related to mass-the motion of an object will remain the same in the absence of unbalanced forces; if a change in the motion of an object is observed, there must have been a net force on the object.
•Explain balanced and unbalanced forces mathematically and graphically with respect to acceleration to establish the relationship between net force, acceleration, and mass: and
•Explain qualitatively and quantitatively the relationship between forces, mass and acceleration - the greater the force on an object, the greater its change in motion; however, the same amount of force applied to an object with less mass results in a greater acceleration.
•While the second law describes a single object, forces always come in equal and opposite pairs due to interaction between objects. Give examples of interaction between objects describing Newton’s third law – whenever one object exerts a force on another, an equal and opposite force is exerted by the second on the first. The third law can be written mathematically as . Students should explain why these forces do not “cancel each other out”.
•Recognize that the weight of an object is a measure of the force of gravity and is the product of its mass and the acceleration due to gravity:Fg = mg
•With negligible air resistance, explain acceleration due to gravity as an example of uniformly changing velocity: g = 9.8 m/s2
•Relate the presence of air resistance to the concept of terminal velocity of an object in free fall.
PSc. 1.2.2
•Identify friction as a force that opposes motion of an object.
•Classify the frictional forces present in a situation as static, sliding, rolling, fluid.
PSc. 1.2.3
•Explain the property of inertia as related to mass-the motion of an object will remain the same in the absence of unbalanced forces; if a change in the motion of an object is observed, there must have been a net force on the object.
•Explain balanced and unbalanced forces mathematically and graphically with respect to acceleration to establish the relationship between net force, acceleration, and mass: and
•Explain qualitatively and quantitatively the relationship between forces, mass and acceleration - the greater the force on an object, the greater its change in motion; however, the same amount of force applied to an object with less mass results in a greater acceleration.
•While the second law describes a single object, forces always come in equal and opposite pairs due to interaction between objects. Give examples of interaction between objects describing Newton’s third law – whenever one object exerts a force on another, an equal and opposite force is exerted by the second on the first. The third law can be written mathematically as . Students should explain why these forces do not “cancel each other out”.
Vocabulary
air resistance
free fall
terminal velocity
inertia
unbalanced forces
constant speed
change in motion
net force
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
force
weight
gravity
mass
acceleration
motion
"at rest"
momentum
free fall
terminal velocity
inertia
unbalanced forces
constant speed
change in motion
net force
Newton's 1st Law
Newton's 2nd Law
Newton's 3rd Law
force
weight
gravity
mass
acceleration
motion
"at rest"
momentum
Online Text
Gravitational Force
Learning Target
I can recognize that gravity is a force that can be exerted on mass to produce weight.
I can calculate the weight of an object given its mass and acceleration due to gravity.
I can explain that an object in free fall maintains constant acceleration (if air resistance is negligible).
I can explain the effects of air resistance on an object's velocity in free fall and describe what terminal velocity is.
I can calculate the weight of an object given its mass and acceleration due to gravity.
I can explain that an object in free fall maintains constant acceleration (if air resistance is negligible).
I can explain the effects of air resistance on an object's velocity in free fall and describe what terminal velocity is.
ps_gravitational_forces.pptx | |
File Size: | 71 kb |
File Type: | pptx |
https://www.youtube.com/watch?v=yoWQ36v1dlA
Frictional Force
Learning Target
I can describe how friction affects motion
I can classify a frictional force as static, sliding, rolling, or fluid friction.
I will recognize friction as a force that opposes motion.
I can classify a frictional force as static, sliding, rolling, or fluid friction.
I will recognize friction as a force that opposes motion.
Newton's Laws
Learning Target
I can calculate the weight of an object given its mass and acceleration due to gravity
I can explain Newton's Laws and give an example of each.
I can explain Newton's Laws and give an example of each.
newton_s_laws_webquest.pdf | |
File Size: | 100 kb |
File Type: |
ps_newton_s_laws.pptx | |
File Size: | 68 kb |
File Type: | pptx |
Newton's 3 Laws and Hockey
Momentum
Learning Targets
I can explain the relationship of mass and velocity to momentum.
I will solve problems involving mass, velocity, and momentum.
I will solve problems involving mass, velocity, and momentum.