What is a force?
A force is any push or pull on an object that can change the current motion of an object.
What is a newton?
A newton is a unit of measure for force.
What are balanced forces?
Forces are balanced on an object when the sum of forces acting on the object is zero. This implies that the forces acting on an object have equal strengths and act in opposite directions. The motion of an object remains unchanged when the forces acting on the object are balanced.
What are unbalanced forces?
Forces are unbalanced on an object when the sum of forces acting on the object is not zero. The motion of an object changes when the forces acting on the object are unbalanced.
What is a change in motion?
A change in motion is when an object speeds up, slows down, or changes its direction.
What is gravity?
Gravity is an attractive force that pulls two or more masses together. The force of gravity (also called weight) depends on the masses of the interacting objects and their separation distance.
What is mass?
Mass is a measure of the amount of matter in an object.
What is a kilogram?
A kilogram is a common unit of measure for mass.
What is a seesaw?
A seesaw consists of a board placed on a fulcrum. The fulcrum is located in the center of the board so the board balances evenly on both sides of the fulcrum.
What is a lever?
A lever is a rigid material such as a rod or board that can be used to apply a force or torque. The lever is supported by a fulcrum.
What is a fulcrum?
A fulcrum is a point of balance for a lever generally located at the midpoint of the lever.
What is the cause of an object changing its motion? In this module, you explore different motion changes of objects and their cause. Get started now trying to balance forces and motion using a seesaw.
