These printable science flash cards discuss energy, motion and design. They're great for physics students.
There are 30 flash cards in this set (5 pages to print.)
To use:
1. Print out the cards.
2. Cut along the dashed lines.
3. Fold along the solid lines.
Sample flash cards in this set:
| Questions | Answers |
|---|---|
| acceleration | rate of increase of speed or velocity (example: accelerator pedal on a car) |
| air resistance (drag) | force of air pushing against the motion of an object |
| balanced force | an object remains in place, no movement occurs |
| control | part of an experiment that does not change, serves as the standard to compare other observations |
| direction | the way the force is applied determines the way an object moves |
| energy | ability to do work |
| energy (kinetic) | energy of motion (moving ball going down a ramp) |
| energy (potential) | stored energy (ball positioned at the top of the ramp) |
| fair test | changing only one variable and keeping the other conditions the same |
| force | any push or pull on an object |
| friction | force that resists motion between two touching surfaces, slows things down and can also produce heat, acts in the opposite direction of force |
| gravity (gravitational force) | force that brings object toward earth |
| inertia | the tendency of an object to resist a change in motion or keep doing what it is doing |
| mass | how much matter an object contains |
| momentum | force or speed of movement; mass in motion, example: a moving train has much more than a moving soccer ball |
| motion | an object changing position over time; change in position measured by distance and time |
| Newton's 1st law of motion | an object tends to stay at rest and an object tends to stay in motion with the same speed and direction unless acted on by unbalanced force |
| Newton's 2nd law of motion | acceleration is always in the direction of the unbalanced force |
| Newton's 3rd law of motion | explains why forces act in pairs; for every action, there is an equal and opposite reaction |
| propeller | two or more twisted blades that rotate around a central point or shaft |
| resistance | force pushing against the motion of an object |
| speed (rate) | distance divided by time (example: 25 mph) |
| unbalanced force | motion occurs, the movement goes in the direction of the greater force (example: winning of a tug-of-war game) |
| variable | something in an experiment that can be changed |
| velocity | speed with direction (example: 45 mph NW) |
| weight | force of gravity pulling down on an object |
| work | moving an object over a distance |
| physical change | "can affect the size, shape or color of a substance but does not affect its composition. The substances may be changed to another phase (i.e. gas, liquid, solid) or separated or combined." (ex: ice cube melting) |
| chemical change | "the substances are altered chemically and display different physical and chemical properties after the change. When a chemical change occurs new substance(s) are formed... A chemical change is irreversible." (ex: digesting food) |
| simple machine | a simple device for altering the magnitude or direction of a force. The six basic types are the lever, wheel and axle, pulley, screw, wedge,and inclined plane |
