Deck 2 = Mechanics

Question 1

Define distance?

Answer 1

-Distance is a measure of how far an object has traveled from the starting point or how far away it is .distance is the same as length and is measured in meters.

Question 2

Define speed?

Answer 2

-Speed is a measure of how fast an object is moving, it is measured in meters per second written as M/S.

Question 3

Define acceleration?

Answer 3

-Acceleration is a vector quantity that is defined as the rate at which an object changes its velocity. an object is accelerating if it is changing its velocity.

Question 4

When an object is travelling at a constant speed…

Answer 4

-The forces are balanced.

Question 5

Objects do not accelerate…

Answer 5

-When forces are balanced.

Question 6

What is the difference between two forces being equal and two forces being balanced?

Answer 6

-Balanced means that there is equal force in both directions. Equal forces mean that both of the forces are exactly the same.

Question 7

If an object is falling from great height what would the forces be on it?

Answer 7

-The object would have a high gravitational potential energy with the force of gravity and a smaller air resistance force.

Question 8

What is the speed of an object if it is falling towards earth?

Answer 8

-The object reaches terminal velocity and will not be able to go any faster.