Force and Motion

Inertia

• An object’s tendency to resist a change in motion.

• An object's ability to accelerate when a force is applied.

• The force that causes an object to move in a circular path.

• The speed of an object in a straight line.

Friction

• A force that accelerates motion between two surfaces.

• A force that resists motion when two surfaces are touching each other.

• A force that increases speed when two surfaces are in contact.

• A force that acts only in a vacuum.

Electrical Energy

• Energy of moving electrons or electric charges.

• Energy stored in chemical bonds.

• Energy produced by friction.

• Energy from nuclear reactions.

Gravity

• A force that pulls all objects that have mass toward one another.

• A type of energy that can be harnessed for power.

• A phenomenon that only affects large celestial bodies.

• An invisible barrier that prevents objects from moving.

Newton’s 1st Law

• An object at rest will remain at rest and an object in motion will remain in motion until acted upon by an unbalanced force.

• An object will always move in a straight line unless acted upon by a force.

• An object in motion will eventually come to a stop without any external force.

• An object at rest will eventually start moving on its own.

Energy Transformation

• Energy changing from one form to another.

• Energy being created from nothing.

• Energy being destroyed in a process.

• Energy remaining constant in a system.

Speed

• The distance an object travels per unit of time.

• The rate at which an object accelerates.

• The total distance covered by an object.

• The time taken to cover a specific distance.

Distance

• The amount of space between two points.

• How far an object has traveled.

• The speed at which an object moves.

• The time taken to cover a certain distance.

Average Speed

• The total distance an object travels divided by the total time traveled.

• The speed of an object at a specific moment in time.

• The distance covered by an object in a straight line.

• The rate at which an object accelerates over time.

Mass

• The amount of matter in an object.

• The weight of an object in a vacuum.

• The volume of an object measured in liters.

• The density of an object calculated by mass divided by volume.