Types of Forces
This is a force that pushes or pulls objects without touching them.
What is a non-contact force?
This happens when two equal forces act on an object, and the object doesn’t move.
What is a balanced force?
This is a push or pull that can make something move, stop, or change direction.
What is force?
This law explains the relationship between force, mass, and acceleration.
What is Newton's Second Law?
This law explains why a rocket moves upward when its engines push downward.
What is Newton's Third Law?
The force responsible for slowing down a sliding object due to rubbing.
What is frictional force?
The state of balance when all forces acting on an object cancel out.
What is equilibrium?
A force that comes from outside an object and moves it.
What is an external force?
This equation represents Newton’s Second Law.
What is F = ma?
For every action, there is an equal and opposite what?
What is reaction?
This contact force occurs when a spring is stretched or compressed.
What is spring force?
A force that causes an object to change its position, speed, or direction.
What is an unbalanced force?
When magnets pull metal objects together, they demonstrate this type of force.
What is magnetic force?
If you use the same force to push a car and a bicycle, the bicycle accelerates more because it has less of this.
What is mass?
When you jump off a boat, the boat moves in this direction because of the third law.
What is backward?
A force caused by the attraction or repulsion of charged particles.
What is electrostatic force?
The term for speeding up an object.
What is accelerate?
This contact force is created by the energy stored in muscles.
What is muscular force?
A heavier object requires more of this to accelerate.
What is force?
A swimmer pushes water in this direction when they use their hands to move forward.
What is backward?
A non-contact force that pulls objects toward the Earth’s center.
What is gravity?
This describes how big or strong a force is.
What is magnitude?
A buildup of electrical charges on the surface of an object is called this.
What is static electricity?
Doubling the force on an object will have this effect on its acceleration, assuming mass stays the same.
What is it doubles the acceleration?
When a bird takes the action of flapping its wings downward to rise into the air, the upward lift is what?
What is a reaction?