Term
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Definition
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Term
| What are three things that energy from a force cause? |
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Definition
| Start, Stop or Change in direction of object |
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Term
| What do velocity and acceleration and momentum have in common? |
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Definition
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Term
| Two forces are being exerted in the same direction on an object. How do you calculate the total force of the object? |
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Definition
| Add the 2 forces together |
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Term
| Two forces are being exerted in the opposite direction on an object. How do you calculate the total force of the object? |
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Definition
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Term
| If forces are applied to an object and it moves. The force is known as what type of force? |
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Definition
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Term
| If opposite forces are applied to an object and all the forces are equal where there is no movement. the force is know as what type of force? |
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Definition
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Term
| What would happen to an object in motion if there was no friction? |
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Definition
| It would continue to travel forever. |
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Term
| A baseball is lying on a field. What must be true about the forces acting on it? |
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Definition
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Term
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Definition
| The tendency of objects to remain in motion or stay at rest. OR The property of matter that tends to resist any change in motion. |
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Term
| How does the mass of an object related to inertia? |
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Definition
| The more of mass the more inertia or hard to change its motion. |
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Term
| What does Newton’s 1st law say? |
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Definition
| An object are rest will remain at rest and an object in motion will remain in motion at a constant velocity unless acted on by an unbalance force. |
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Term
| What 2 things does the velocity of an object tell you? |
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Definition
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Term
| What does Newton's 2nd law explain? |
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Definition
| How acceleration and force and mass are related |
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Term
| Thinking about Newton's law, how are acceleration and force related? |
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Definition
| More acceleration, more force |
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Term
| Newton’s 2nd law shows how acceleration and force are relate, but there is one more variable that needs to be considered. What is it? |
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Definition
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Term
| What is the formula for Newton's 2nd law? |
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Definition
| Force = mass X acceleration |
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Term
| What is force measured in? |
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Definition
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Term
| What does one Newton equal? |
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Definition
| Acceleration on 1 kg at 1 m/sec/sec |
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Term
| How much force is needed to accelerate a 66 kg skier 1 m/sec/sec? |
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Definition
| 66 Newtons (F = 66kg * 1 m/sec/sec) |
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Term
| What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec/sec? |
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Definition
| 9800 Newtons (F= 1000 kg * 9.8 m/sec/sec) |
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Term
| What does Newton’s 3rd law of motion say? |
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Definition
| For every reaction, there is an equal and opposite reaction. or every force needs to have an opposite force. |
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Term
Which Newton's law is shown in the following examples:
1. Astronaut throwing rocket pack in one direction him moving in another
2. birds wing push against air
3. rocket engine gas push in one direction rocket goes in another |
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Definition
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Term
| What unit is speed measured in? |
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Definition
| Meters per second (m/sec) |
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Term
| What word which means "lazy" did Newton use to describe the fact that objects like to do what they are already doing? |
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Definition
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Term
| Net Force is the ________ of all forces acting on an object. |
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Definition
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Term
| Drag force acting on a falling object is the same thing as __________________. |
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Definition
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Term
| The amount of time needed to go a certain distance refers to the _________ of the object. |
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Definition
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