Types of Forces Flashcards
(24 cards)
What is a force?
A force is a push or pull acting upon an object as a result of its interaction with another object.
True or False: Forces can only be exerted by living organisms.
False. Forces can be exerted by both living organisms and non-living objects.
Which of the following is not a type of force: gravitational, electromagnetic, frictional, or rotational?
Rotational
Define gravitational force.
Gravitational force is the force of attraction between two objects with mass.
What type of force is present when a magnet attracts a metal object?
Electromagnetic force
Fill in the blank: Friction is a force that opposes the _______ of an object.
motion
What is the SI unit of force?
Newton (N)
Which law states that for every action, there is an equal and opposite reaction?
Newton’s third law of motion
Define tension force.
Tension force is the force transmitted through a string, rope, cable, or wire when it is pulled tight by forces acting from opposite ends.
What is the net force on an object when all forces acting on it are balanced?
Zero
True or False: Inertia is the tendency of an object to resist changes in its state of motion.
True
What type of force is present when a car brakes to a stop?
Frictional force
Define normal force.
Normal force is the support force exerted upon an object that is in contact with another stable object.
Fill in the blank: The force required to lift an object against the force of gravity is known as ________ force.
Lift
Which force allows a rocket to launch into space?
Thrust
What is the force that opposes the motion of an object through a fluid (liquid or gas)?
Drag force
True or False: Weight is a measure of the gravitational force acting on an object’s mass.
True
Define centripetal force.
Centripetal force is the force that keeps an object moving in a circular path.
Fill in the blank: The force of air resistance on a falling object increases as the _________ of the object increases.
speed
What type of force is present when a book rests on a table?
Normal force
True or False: A force can cause an object to change its shape.
True
Define spring force.
Spring force is the force exerted by a compressed or stretched spring upon any object that is attached to it.
Fill in the blank: The force of gravity acting on an object is known as its ________.
weight
Which force allows a person to walk on the ground?
Frictional force
