Newton's First Law
What is the law?
An object in motion will stay in motion and an object at rest will stay at rest unless acted on by an unbalanced force.
What is the law?
The force of an object is equal to its mass times its acceleration
What is the law?
For every action there is an equal and opposite reaction
How is a bowling ball knocking down bowling pins an example of Newton's First Law?
The bowling pins stay constant at rest until the bowling ball hits it with force knocking the pins down.
Whose laws of motion do these laws belong to?
Isaac Newton
True or false? An object will not change its motion unless a force acts on it is Newton’s First Law
True
True or False? When one object exerts a force on a second object, the second object exerts an equal force in the opposite direction on the first object is Newton’s Second Law.
False
True or False? A change in motion occurs only if a net force is exerted on an object is Newton’s Third Law.
False
A biker is riding a bike. How is that an example of Newton's Law number Two?
A:The bike is the mass, your leg muscles are pushing the bike (force). As you push the pedals the bike accelerates.
True or False? There are 4 laws of motion
False
How many objects resist having their motion changed? (All or none?)
All
Info: A net force changes the velocity of the object, and causes it to accelerate. If an object is acted upon by a net force. Will the change in velocity be in the direction of the net force?
Yes
What is a reaction force?
A reaction force is a force exerted by the second object.
How is a soccer player kicking a soccer ball an example of Newton's 3rd Law?
the amount of force the player kicks on the ball, the same amount of force will be the same amount of distance the ball will go.
Multiple Choice:The Law of motion explain
A: accelerated motion
B: how to graph
C: constant motion or rest
D: A&C
D
Fill in the blank:
An object that is not moving or moving remains at rest or moving until something ________
Pushes or pulls it
Fill in the blank: The acceleration of an object depends on ______.
its mass
Fill in the blank: When one object exerts a force on a second object, the second object exerts an ____ force in the _____ direction on the first object
equal
opposite
Explain how a swimmer swimming is an example of any of Newton's Three Laws?
Law 1: When the swimmer enters the water they are still until they start moving/pushing there legs and arms causing them to accelerate
Law 2: If the swimmer has more force (from their legs and arms) they will accelerate faster. If the swimmer has less force (from their legs and arms) they will accelerate slower
Law 3: For every time the swimmer pushes the water with their legs and arms they will swim faster.
Fill in the blanks: The more _____ an object has, the greater its ________
1 mass
2. inertia
What is inertia?
The tendency to resist a change in motion
The harder it is to accelerate, the…
more mass an object has
In the situation If you add force to a chromebook of 3N, the chromebook will move 3N. Is applying the force the action force or reaction force?
Action force
A cheetah is running. How is that an example of Newton's Law 3?
A: When the cheetah pushes down on the ground the ground pushes the cheetah faster
When an object has more mass if the force acting on the objects is the same, is there more or less acceleration?
Less