Concept Definitions
What is mass?
Measure of the amount of matter in an object
What is the rate of gravity?
9.8 m/s2
What is gravity?
A force of attraction between 2 objects due to their mass.
What makes a steam boat have more momentum than a mosquito?
It's mass.
Newton’s first law of motion is also known as?
Law of Inertia
What is velocity?
The speed and direction of an object
What is the formula for velocity?
What quality of an object affects the amount of gravitational force it has?
It's mass!
Momentum depends on ____ and ______.
_mass and velocity_
State Newton's First Law.
An object in motion will stay in motion and an object at rest will remain at rest unless acted on by a force
What is inertia?
An object’s resistance to change motion
What is a vector quantity?
A measurement with direction.
What 2 things do you need to know in order to calculate the gravitational force between two objects?
1. The mass of the two objects
2. The distance between the two objects
What makes a bullet have more momentum than a bowling ball?
The bullet has more velocity!
This term refers to an object's natural resistance to any change in its state of motion.
What is inertia?
What "type" of force is air resistance?
Friction!
What is the formula for momentum?
p=m*v
Why is the gravitational force between you and the earth stronger than the gravity between you and the sun?
The sun is much farther away, making the gravitational force much weaker.
When does air resistance affect an object more?
If the object has more surface area
State Newton’s second law of motion.
The acceleration of an object depends on the mass and force
What is impulse?
The CHANGE in momentum
What makes an object have more inertia?
An object designed to eliminate air resistance when it travels through air is called ...
Aerodynamic!
What two ways can you INCREASE the momentum of an object?
1. Increase the mass of the object
2. Increase the velocity of the object
The recoil of a gun is a classic example of which law?
Newtons third law: for every action, there is an equal and opposite reaction.