# Deck 2 = Mechanics Flashcards

1
Q

Define distance?

A

-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.

2
Q

Define speed?

A

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

3
Q

Define acceleration?

A

-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.

4
Q

When an object is travelling at a constant speed…

A

-The forces are balanced.

5
Q

Objects do not accelerate…

A

-When forces are balanced.

6
Q

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

A

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

7
Q

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

A

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

8
Q

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

A

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