Forces and MOtion
Unit Essential Question(s):
How do force(s) affect the motion of an object?
Concept: Speed of an object
Leq: how do you determine the speed of a moving object?
You can always find speed using the equation speed=distance divided by time.
leq: How can you identify and illustrate constant speed and non-constant speed of an object?
Dot Trails
Constant Motion
Constant Motion
Non Constant Motion
Line Graphs
Constant Motion
Non Constant Motion
Constant Speed- moving at the same distance during an interval of time.
Non-Constant Speed- moving at and increasing or decreasing distance during the interval of time.
Linear- a straight line
Non-Linear- a curved line
Average Speed- total distance traveled/total time elapsed
Non-Constant Speed- moving at and increasing or decreasing distance during the interval of time.
Linear- a straight line
Non-Linear- a curved line
Average Speed- total distance traveled/total time elapsed
Concept: Gravity
Leq: HOw does gravity affect an object on earth?
Main Ideas:
-Gravity pulls vertically down.
-Gravity pulls towards the center of the earth.
-Mass and weight are different things.
Mass- how much matter there is.
Weight- how much gravity pulls on things.
-Gravity pulls vertically down.
-Gravity pulls towards the center of the earth.
-Mass and weight are different things.
Mass- how much matter there is.
Weight- how much gravity pulls on things.
Gravity- pulling force that pull objects towards each other depending on their mass.
Mass- how much matter there is in an object
Weight- how much gravity pull on an object
Vertically Downward- straight down
Mass- how much matter there is in an object
Weight- how much gravity pull on an object
Vertically Downward- straight down
concept: forces
Force- a push/pull that affects the motion of an object.
leq: How do balanced and unbalanced forces affect the motion of an object?
Balanced Force - when forces are equal and motion is constant.
Unbalanced Force - when forces acting on an object are not equal and the motion changes (non-constant).
Unbalanced Force - when forces acting on an object are not equal and the motion changes (non-constant).
leq: how does the size and direction of the forces influence the path and motion of an object?
Friction- a rubbing motion that prevents objects from moving or creates motion
Tension Force- a rope, string, strap, or cable pulling on an object
Support Force- a force that keeps objects from falling, usually under or beneath the object pushing up against gravity
Elastic Force- a push or pulling force that stretches and goes back, very bouncy
Air Resistance- acts opposite of an object moving through the air
Human Force- a push or pull by a human
Tension Force- a rope, string, strap, or cable pulling on an object
Support Force- a force that keeps objects from falling, usually under or beneath the object pushing up against gravity
Elastic Force- a push or pulling force that stretches and goes back, very bouncy
Air Resistance- acts opposite of an object moving through the air
Human Force- a push or pull by a human
leq: how can we use force diagrams to calculate the total force and predict the motion of an object?
Total Force- The combination of all forces that act on an object.