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7Sci Chapter 18 Sec2

Forces & Motion - Newton's Laws of Motion

An object at rest remains at rest, and an object in motion remains in motion at constant speed and in a straight line unless acted on by an unbalanced force. Newton's First Law of Motion
The acceleration of an object depends on its mass and force acting on it. Newton's Second Law of Motion
All forces act in pairs. Newton's Third Law of Motion
The tendency of all objects to resist any change in motion. inertia
When will objects at rest NOT stay at rest? when objects are acted upon by unbalanced forces
The equation for Newton's second law of motion is? F=m x a
What happens to your motion when the bumper car you're riding in is hit? your motion continues with the same velocity
Why will the soccer ball you kick come to a stop on its own? it is stopped by friction
Why can't a car, plane, or bicycle stop immediately? inertia
Why is it easier to stop a bicycle than a car? the bicycle has smaller mass and thus less inertia
What would happen if the action and reaction forces acted on the same object? the forces would cancel and the object does not move
According to Newton's first law of motion, a moving object that is not acted on by an unbalanced force will do what? remain in motion
What is an example of an action/reaction force pair? the force between a grasshopper and the ground
What makes it harder to change the motion of a watermelon than of an apple? mass
Created by: ndmsteach