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Fifth Grade Physics
Vocab terms for fifth grade force and motion
| Question | Answer |
|---|---|
| A simple machine that gives leverage by creating distance from the work. | Lever |
| The location of an object. | Position |
| A measurement of distance over time. | Speed |
| A push or pull of an object. | Force |
| Some examples of force. | Lift, Drag, Gravity, Friction, Thrust, push, pull, kick |
| What is the speed of a golfball that moves 35 meters in 5 seconds? | Speed=distance/time...7 meters per second. |
| Why is a compass a useful tool for describing motion? | It describes the direction of an object. |
| A measurement of speed and direction. | Velocity |
| The motion of an object can be understood by examining what? | All of the forces acting on the object. |
| The forward motion of a shark is caused by which force? | Thrust...think about the fin of the shark. what is it doing? Thrusting the shark forward. |
| The capacity to do work. The ability to do work. | Energy |
| Energy when it is being used. | Kinectic energy |
| Energy that is being stored. | Potential energy |
| Something that replaces human effort. | Machines...simple or compound |
| THe force that pulls all objects towards the center of the Earth. | Gravity |
| Name some forms of energy. | Solar, wind, sound, heat, light, chemical, mechanical, |
| What is needed to operate a machine? | Energy |
| Why does a machine that lifts boxes off the ground need energy? | It needs energy to pull against the force of gravity. |
| Forces that have a net force of zero. Playing tug of war with your identical twin! | Balanced Force |
| Forces that have a net force that is not zero. Playing tug of war with someone twice your size. | Unbalanced Force |
| What is net force? | The total force that is acting on an object. |
| If a force is balanced what kind of motion will happen? | No movement. |
| What type of force allows you to stand up in a chair? | Balanced |
| A ball has two forces acting on it. One force is pushing it to the left, and a larger force is pushing it to the right. IN which direction will the ball move? | Right |
| The tendency for an object to remain at rest or in motion unless it is acted on by a force. Newton's 1st Law | Inertia |
| Product of the mass and velocity of an object. | Momentum |
| What does Newton's second law of motion state? | That the force an object needs to move is directed to the mass of the object and the speed of the object. Force=mass x acceleration |
| The force that acts on an object to stop its motion. | Friction |
| What is changed by how fast an object is moving and how much mass that object has? | Momentum |
| A soccer ball rolls across a grassy field and comes to a stop. What caused the soccer ball to stop? | Friction |
| Imagining and creating the best way to solve a problem. | Design |
| What is a distance vs time graph measure? | The movement of an object. |
| A line on the distance vs time graph moving up means... | The object is accelerating. |
| A line on the distance vs time graph moving down means... | The object is decelerating. |
| A horizontal line on the distance vs time graph means the object is... | standing still. |
| The force, or drag, of air pushing against the motion of an object. | Air resistance. |
| What best describes the direction of the Earth's gravitational force? | It pulls objects closer to Earth. |
Created by:
cgsmith
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