Balanced Force
What is the cause of a balanced force?
Multiple forces of equal strength acting on an object.
What is a non-contact force?
A force that acts between objects that are not touching each other.
What is a contact force?
A force that acts between objects that are touching each other.
Force that causes an object to move?
Unbalanced Force
What two actions describe a force?
A push or a pull.
What is an example of a balanced force?
Something that is motionless
What is an example of non-contact forces ?
Gravity, Magnetic, or Electrical Forces
What is it called when you close a door?
Push/Repel
What is an example of an unbalanced force?
Playing tug o' war and one side is stronger
What is it called when a force moves something towards you?
Pull/Attract
True or False: Balanced forces have unequal strength?
False - they have equal strength.
A force that attracts objects with mass to each other?
Gravity
What contact force causes a ball to stop rolling on a surface?
Friction
Multiple forces of different strengths acting on an object is balanced or unbalanced?
Unbalanced because the forces are different/unequal
A lamp sitting on a table, is an example of a _______ force
balanced
Is a car driving at constant speed experiencing balanced or unbalanced forces?
Balanced
Two poles that are the same will ________ each other.
Repel/Push
True or false: Friction is a contact force
True
What is the unit used to measure force
Newton
What is it called when a force moves an object away from you?
Push/Repel
Look around the room, what do you see that is experiencing a balanced force?
ex: a chair - because there are two equal forces being acting on it causing it to remain motionless
____ is a non-contact force acting all around us, what is it?
Gravity
The action of one surface or object rubbing against another is called?
Friction
What three things can an unbalanced force do to an object?
1) Cause an object to speed up
2) Cause an object to slow down
3) Cause an object to change position or direction
What two forces are being exerted on the textbook sitting on your desk?
1) Gravity Force pulling down
2) Normal Force pushing back up
(Normal Force also called Reaction Force)