Acceleration
Define Acceleration
What is...acceleration is a change in velocity/speed?
What is Newton's First Law?
An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.
What is Newton's Second Law?
The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.
What is Newton's Third Law?
For every action, there is an equal and opposite reaction
What is the law of conservation of mass?
The law states that mass is neither created nor destroyed in a chemical reaction
How does mass affect acceleration?
A larger mass results in a smaller acceleration for a given net force, according to Newton's Second Law.
Describe an example of inertia.
Example is something that continues moving or stays sitting still until a force acts on it.
How is force calculated?
Force is calculated using the formula F=m x a, where m is mass and a is acceleration.
Provide an example of action and reaction.
Example must include the action being applied to something and the opposite action being applied.
How does this law apply to chemical reactions?
In a chemical reaction, the total mass of reactants equals the total mass of products
What is the formula for acceleration?
The formula for acceleration is a= F / m
How does this law apply to seatbelts?
Seatbelts provide an external force that stops passengers from continuing their motion forward during a sudden stop.
What is the relationship between force and acceleration?
The greater the force applied to an object, the greater its acceleration will be.
How does this law apply to a baseball player batting?
Baseball player applies a force to the baseball using the bat. The ball applies the same force back to the bat.
Provide an example in everyday life.
Example should have several "reactants" being combined and the "products" should equal the mass had at the beginning:
Example: When baking a cake, the mass of the ingredients before baking equals the mass of the cake after baking.
Give an example of acceleration.
Example must be something that either speeds up, slows down, or changes direction
What happens to an object in motion?
It will continue moving in a straight line at a constant speed unless a net force acts on it.
Give an example of this law in action.
Example has something applying a force to make it accelerate faster or increases in mass makes it accelerate slower.
How would this law apply to gravity pulling you down?
As gravity pulls you down against the floor/seat the floor/seat pushes you up.
What happens to mass in a closed system?
The mass remains constant; no mass enters or leaves the system.
What happens to acceleration if the net force increases?
If the net force increases, the acceleration of the object also increases, assuming mass remains constant.
How does mass relate to inertia?
The greater the mass of an object, the greater its inertia, meaning it resists changes in motion.
How does doubling the force affect acceleration?
Doubling the force will double the acceleration, assuming mass remains constant.
What happens during a car crash?
The car applies a force as it collides with something. That object applies an equal and opposite force to the car.
In a closed system, 25 grams of reactants produce 10 grams of one product and 15 grams of another. Does this match the law of conservation of mass?
Yes it is 25 grams on the reactants side and 25 grams on the products side