Question

brainpop science / investigation / observe and check 1
1 the black arrows (→) in the simulation show the force of gravity on two objects, m1 and m2. what three things are true of these arrows?
they have different lengths
they point toward the other object
they start at the center of each object
they start at the surface of each object
they have the same length

Explanation:

1. Gravitational force between two objects is an interaction force, so the magnitude of the force on m1 from m2 is equal to the force on m2 from m1. Equal force magnitude means the arrows representing them have the same length.
2. Gravity is an attractive force, so each object is pulled toward the other. Thus, the arrows point toward the other object.
3. In physics simulations, gravitational force vectors are typically drawn starting from the center of mass (center) of each object, as gravity acts on the entire mass of the object, modeled as acting from its center.

Answer:

• They point toward the other object
• They start at the center of each object
• They have the same length