7Sci Chapter 18 Sec2 Word Scramble
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Question | Answer |
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 |
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