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Dallas Criss
Force
| Question | Answer |
|---|---|
| What are the 4 possible effects of friction on object?, | Heat, slow down, stop, and oppose motion |
| Why does a soccer ball slow down when it rolls | Friction causes the soccer ball to slow down when it rolls. |
| Friction is _________ between rough surfaces than between smooth surface? | Greater |
| The force of attraction between two objects is called: | Gravity |
| Gravity causes falling objects to: | Speed-up |
| What two things does the strengh of gravitational force depend on? | The distance between two objects and mass. |
| Gravitational force is stronger when object are____________ each other. | Attract |
| Gravitational force is stronger when object have _______ mass. | More |
| Why does a person weigh more on Earth than on the moon? | Earth as more mass than the moon. |
| What attracts objects to a magnet? | Magnetic Force |
| Describe how a compass can help you find direction. | A compass can help you find direction by the Magnetic forces in the air. |
| Part 4: Balance and Unbalanced Forces | |
| What two forces act equally on an object but in opposite direction, the object ______ | Doesn't move |
| When you add the total of all of the forces acting on an object, you get ______ | Net Forces |
| The force of water pushing up on the an object is ________ | Buoyant Force |
| When you go down a slide, what force is acting on you to make you move. | Gravity |
| What force is acting to slow you down on a slide? | Friction |
| When the force of gravity is equal to the fou in force of friction, what will happen? | The object will stop moving. |
| What is the difference between balanced and unbalanced forces? | Balance is forces that cancel each other out and unbalance forces that don't cancel each other. |
| What affects how an object moves? | Net Force |
| What is the net force when the forces are balanced? | The net force is zero. |
| What results when force are unbalanced? | Motion |
| What force pushes up on you in water? | Buoyant Force |
| A buoyant force act in the ______from weight | Opposite direction |
| What is weight? | Weight is the measure of gravity pulling down on you. |
| What will happen if the buoyant force is equal to or greater than the weight of the water you push aside? | It will cause to float. |
| What will happen the buoyant force is less than the weight of water you push aside? | It would cause the water to go down faster. |
| Part 5:Work and Simple Machine | |
| What means using a force to move an object? | Work means using a force to move an object. |
| If a force is applied and an objectth does not move, is work being done? | No |
| What is anything that makes work easier? | Sea-saw |
| What are two parts of a lever and what do they do? | The lever has two parts: Lever arm and the fulcrum. Lever arm is what you hold. The Fulcrum is the balance point that supports the bar. |
| Give an example of the lever. | See-saw |
| Give an example of an incline plane. | Slide |
| What can a pulley help you witht? | Lift a heavy item from the ground. |
| Give an example of a wheel-and -axle? | Clock |
| What is made of two or more simple machine? | Compound Machine |
| How do compound machine help make work easily? | Compound machine uses less force. |
Created by:
clakid
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