Science Flashcards
Differentiate between contact and no contact forces:
Contact force has contact between two objects while non contact force doesn’t require contact
Differentiate between the types of fire toon: Static Friction, Sliding Friction, and Fluid Friction
Static Friction- keeps an object at rest
Sliding Friction- movement between two sliding objects
Fluid Friction- friction between layers of a viscous fluid that one moving relative to each other on their
Lubricants and reducing air resistance reduce friction. True or False?
True
Distinguish between weight and mass
Weight- is how much an object weighs
Mass- how much matter is in an object
Describe reference direction:
A chosen direction used to describe an objects direction
Differentiate between balanced and unbalanced forces
Balanced Force- when two forces are the same strength but in different directions
Unbalanced Force- the force applied in one direction is greater than the force applied in the opposite direction
What causes an object to remain in motion?
Inertia
Describe Newton’s First Law of Motion
An object at rest remains at rest and an object in motion remains in motion at constant speed an in a straight line unless acted on by an unbalanced force
Give examples of unbalanced forces:
Object sinking in water, turning a cartwheel
Explain Newton’s Second Law of Motion:
Time rate of change of the momentum of a body is equal in both magnitude and direction to the force imposed on it
Tell what a, f, and m stand for in Newton’s Second Law of Motion
A- Acceleration
F- Force
M- Mass
Describe centripetal force:
A net force that acts on an object to keep it moving along a circular path
Describe Newton’s Third Law of Motion:
For every action (force) in nature there is an equal and opposite reaction
