Forces and Motion 1
Name 3 types of NonContact forces?
Gravity, Magnetism, Electricity
A push or pull
Force
Contact for or Non-contact force?
Hitting a tennis ball with a tennis racquet
Contact Force
Stored up energy is called...
Potential Energy
Energy in motion is called....
Kinetic Energy
A change in position/distance is called/indicates _______________
Displacement or Motion
A force between two surfaces which prevents them from sliding past one another.
Friction
Forces that cause a change in motion are called..
unbalanced forces
Friction in the air is called...
Air Resistance
What Net Force Value do two equal forces in opposite direction have? (no naked numbers)
0 Newtons
Which has more inertia?
A Feather or A Bowling Ball?
Bowling Ball
Other than distance/time graphs, what other types of graphs are considered motion graphs?
Velocity/Time Graphs
The sum of all forces acting on an object
Net Force
In a game of tug-o-war, what happens when the forces exerted by Team A and Team B are balanced?
neither team wins
How are mass and inertia related?
More mass more inertia
Besides strength or magnitude, what does every force have?
Direction
What does slope indicate on a distance/time graph?
Speed
Forces on an object that are equal in size and opposite in direction, cancelling each other out are called...
Balanced Forces
As motion increase, friction ____________
decreases
When going on a roller coaster, at which point do you have the MOST potential energy?
At the top of the highest hill
What is Newton's first law of motion?
An object at rest remains at rest unless acted upon by an outside force. An object in motion remains in motion unless acted upon by an outside force.
Give an example of a situation that demonstrated Newton's first law of motion
Answers will vary
What force causes it to be more difficult to walk on ice than on a dry sidewalk?
Friction
True or False? An object in constant motion without friction AND an object at rest BOTH have balanced forces acting on them with a Net Force of 0!
TRUE
Draw a Force Diagram for a Book Sitting on a Table; Label all the forces
Check drawings on the boards