Vocab
Definition of Gravity
a fundamental force of attraction that exists between any two objects with mass or energy, causing them to pull towards each other.
Does every plant in the solar system have gravity.
What direction does gravity pull?
Towards the center of the earth.
If a ping pong ball and a tennis ball are dropped from the same height at the same time, what should happen?
They both should hit the grounds at the same time unless air resistance is a factor.
What is gravity
Its a fundamental force of nature
Definition of Force
strength or energy as an attribute of physical action or movement. Newton's Second LAw
Does the gravitation pull have to do with Earth's Tides?
Yes it pulls the Moon
What is the frictional force air exerts against a moving object?
Air Resistance
If an apple and an orange are dropped from the same height at the same time, what should happen?
They both should hit the grounds at the same time.
Why do we need gravity on earth?
It holds the atmosphere in place and us to the ground.
Definition of Weight
a body's relative mass or the quantity of matter contained by it, giving rise to a downward force; the heaviness of a person or thing.
Is gravity a push force or an attraction force?
Attraction
Does the mass of an object have an effect on the speed at which it falls?
No, the mass of an object does not matter because of gravity.
If a crumpled paper and a flat paper are dropped at the same time from the same height, why does the the flat paper land second?
because air resistance pushed against the flat paper's surface area and slows it down.
Is gravity weak or strong out of all the fundamental forces
Gravity is the weakest force.
Definition of Mass
a fundamental property of matter that measures an object's resistance to acceleration (inertia) and the amount of "stuff" (matter) it contains.
What year did the idea of gravity get proposed in.
1665-1666
If a baseball is thrown up into the air, what will happen?
It will slow down and then gravity will pull it back towards the center of the earth.
If a frog jumped up into the air at the South Pole, what would happen
Gravity will pull it back to the center of the earth
How do some planets have a higher and smaller gravitational pull?
Its mass size.
Definition of Acceleration
acceleration is the rate of change of the velocity of an object with respect to time. Acceleration is one of several components of kinematics, the study of motion. Accelerations are vector quantities
Who were the 2 people who came up with the concept of gravity?
Isaac Newton
Albert Einstein
What is the gravitational pull formula
F = G(m1 * m2) / r^2,