forces Flashcards
(24 cards)
What is a force?
A force is a push or pull that can cause an object to move, stop, or change direction.
True or False: Forces can only be applied by living organisms.
False - Forces can be applied by both living and non-living things.
Which unit is used to measure force?
Newton (N)
What is the formula for calculating force?
Force = mass x acceleration (F = ma)
What is the net force on an object when all forces are balanced?
The net force is zero.
In which direction does friction act?
Friction acts in the opposite direction of motion.
What is the force that opposes the motion of objects through air or water?
Drag force
What is the force that pulls objects towards each other due to their mass?
Gravity
What is the force that allows objects to float in a fluid?
Buoyant force
What is the force that occurs when two objects rub against each other?
Frictional force
Which force is responsible for keeping objects on the ground?
Normal force
What is the force that acts on an object in motion in a circular path?
Centripetal force
What is the force that opposes the relative motion or tendency of such motion between two surfaces in contact?
Static friction
Which force allows a rocket to lift off the ground?
Thrust force
What is the force exerted by a stretched or compressed spring?
Spring force
What is the force that occurs when two objects slide past each other?
Kinetic friction
What is the force that occurs when an object moves through a fluid?
Viscous drag force
What is the force that occurs when two objects slide past each other due to microscopic irregularities in their surfaces?
Surface tension force
What is the force that opposes the motion of an object sliding down a slope?
Component of the weight force parallel to the slope
What is the force that occurs when an object moves through air or water at high speeds?
Pressure drag force
What is the force that occurs when an object is pushed through a fluid?
Form drag force
Which force causes a change in the shape or size of an object?
Deformation force
What is the force that allows objects to stick together?
Adhesive force
What is the force that allows objects to repel each other?
Repulsive force
