by Callie Oliver | Jan 4, 2019
(MS.PS3C.a)When two objects interact, each one exerts a force on the other that can cause energy to be transferred to or from the object.
by Callie Oliver | Jan 4, 2019
(MS.PS3A.b) An object or system of objects may also contain stored (potential) energy, depending on their relative positions.
by Callie Oliver | Jan 4, 2019
(MS.PS3A.a) Motion energy is properly called kinetic energy; it is proportional to the mass of the moving object and grows with the square of its speed.
by Callie Oliver | Jan 4, 2019
(MS.PS2B.c) Forces that act at a distance (electric, magnetic, and gravitational) can be explained by fields that extend through space and can be mapped by their effect on a test object (a charged object, or a ball, respectively).
by Callie Oliver | Jan 4, 2019
(MS.PS2B.b) Gravitational forces are always attractive. There is a gravitational force between any two masses, but it is very small except when one or both of the objects have large mass (e.g., Earth and the sun).
