Unit 4

3. The force that attracts two objects toward each other, commonly experienced as the force that pulls objects toward the Earth. It gives weight to objects and keeps them grounded.
5. an object will remain in its current state of motion or at rest unless an outside net force acts on it
8. A force that opposes the motion of an object when it comes into contact with another surface. It can slow down or stop moving objects.
11. The unit of measurement for force in the International System of Units (SI). One Newton is the amount of force required to accelerate a one-kilogram mass by one meter per second squared.

1. The rate at which an object's velocity changes over time. It indicates how quickly something speeds up, slows down, or changes direction.
2. equal and opposite forces on an object that result in no change in position, direction, or motion; combined net force equals zero
4. unequal forces acting on an object that may result in a change in position, direction, or motion; net force not equal zero
6. the combination of all forces acting on an object
7. A push or pull on an object that can cause it to move, stop, or change direction. Force is measured in Newtons.
9. The quantity of motion an object has, which depends on its mass and velocity. It is calculated as the product of an object's mass and its velocity.
10. The change in position of an object over time. Motion can be described in terms of speed, direction, and distance traveled.