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Brandt Sci 12
Chapter 12 part 1
| Question | Answer |
|---|---|
| Force | Push or pull makes object start moving or stop moving, speed up or slow down or change direction |
| Friction | Force between surfaces that slows objects down or stops them from moving |
| Speed | Distance object moves in a certain time |
| Inertia | The tendency of an object to remain in motion or to stay at rest unless acted upon by an outside force |
| Work | Use of a force to move an object a certain distance |
| Energy | Ability to do work, either to make an object move or to change matter |
| Simple Machine | Machine with few moving parts, making it easier to do work |
| Effort Force | Amount of force needed to move something |
| Load | Object being lifted or moved by a machine |
| What is the difference between a simple machine and a machine? | A simple machine has few parts. |
| What are the two parts of a lever? | fulcrum and bar |
| When a pulley wheel is attached to something it is a _______________? | Fixed Pulley |
| Which simple machine has a bar that passes through the center of the wheel? | Wheel and Axle |
| Which simple machine has two inclined planes back to back? | Wedge |
| What simple machine has a wheel and string to lift things easier? | Pulley |
| What machine has wheels and teeth? | Gears |
| What does more pulleys do for you? | Makes it easier |
| What do two or more simple machines together make? | Compound Machine |
| What simple machine is an incline plane twisted? | Screw |
| What two simple machines make a pair of scissors? | Lever and Wedge |
| What is the measure of how much useful work a machine puts out compared to work put in called? | Efficiency |
| When gears move on a machine energy is a lost to what? | Friction |
| Forces make objects____________? | Slow down or change directions |
| Friction makes objects _________ down? | Slow down or stop |
| Energy that is moving(like throwing a ball) is ___________energy | Kinetic |
| Energy that is not moving or stored (like a pencil sitting on your desk) is __________ energy. | Potential |
| What kind of energy do we get from our food? | Chemical Energy |
| What kind of energy do we get from falling water or wind? | Mechanical Energy |
| What kind of energy do we get from the sun? | Light Energy |
| What kind of energy do we get from a stove or fire? | Thermal Energy |
| A ramp is what kind of simple machine? | Inclined Plane |
| Your teeth are what kind of simple machine? | Wedge |
| A flagpole has what kind of simple machine attached to it? | Pulley |
| A turn jack is what kind of simple machine? | Screw |
| A round doorknob is what kind of simple machine? | Wheel and Axle |
| A teeter totter is what kind of simple machine? | Lever |
| What simple machine do you use playing baseball? | Lever |
| What simple machine is a window blind? | Pulley |
| What force pulls items to the ground? | Gravity |
| If you are loading heavy boxes onto a truck what simple machine might help you? | Inclined Plane |
Created by:
kristib2pea
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