Fifth Grade Physics Vocabulary
Fifth Grade Physics Vocabulary
Goal / Word / Page / Definition / Associated conceptsPhysics / Students will understand force, motion, and the relationship between them
Force / F6 / A push or pull that acts on an object
Inertia / F7 / Tendency of an object to resist a change in its state of motion / The mass of an object makes the object resist being set into motion
Friction / F8 / Force that opposes the motions of one object moving past another
Newton’s
Law of Universal Gravitation / F38 / The force of gravity between two objects increases with the mass of the objects and decreases with the distance between them squared. / Applies to any object; light objects the force of gravity is weaker than for objects with greater mass
Speed / F11 / How fast an objects position is changing with time at any moment / The speed is found by dividing the distance by the time
Velocity / F12 / Speed of a moving object together with its direction of travel
Acceleration / F13 / Change in velocity per unit of time / Applying a force to object that would over come its inertia and change its velocity
Momentum / the motion of a body and its resistance to slowing down. It is equal to the product of the body's mass and velocity. / Force or speed of motion
Balanced forces / F21 / All the forces on an object cancel one another out
Unbalanced forces / F21 / Certain force is either only partially canceled or not canceled at all by other forces
Action / F24 / The force one object applies to a second, as in Newton’s third law of motion
Reaction / F24 / The force with which an object responds to an action, as in Newton’s third law of motion