Motion
Motion is described by an objects ___________ and ___________ .
Direction and Speed
What are 3 types of force?
Gravity, friction, elasticity, electricity, and magnetism.
Stored energy is...
Potential energy
The energy of motion is...
Kinetic energy
What does the word "attract" mean?
To pull toward
Examples of directions are...
Up, Down, Forward, Backwards, Left, Right, etc.
What os the force that occurs when matter rubs against matter?
Friction
Which has more potential energy? The clock, or something hung on the bulletin board.
The clock
What has more kinetic energy? A fastball thrown by Jack C., or an underhand pitch thrown by Miss McPeak?
A fastball thrown by Jack C.
What do magnets attract?
other magnets, some metals
Speed equals ___________ ___________ divided by ___________ spent moving.
Distance traveled, time
What force allows you to throw a tennis ball, make it pause mid air, and return to you?
Gravity
The ___________ an object is the more potential energy is has.
higher
All ___________ objects have kinetic energy.
moving
What direction does a compass point to?
North
What is the property of matter that causes it to resist a change of its motion in either speed or direction?
Inertia
When friction occurs, so does ___________.
heat
Where would a child have more potential energy? At the top of a slide, or at the bottom of a slide?
At the top of the slide.
What is one time of the day that you use kinetic energy?
Gym, taking notes, walking in the hallway, etc.
What are the two different magnetic poles?
North and South
Unless acted on by a force; objects in ___________ tend to stay in ___________, and objects at ___________ tend to stay at ___________.
motion, motion, rest, rest
What is a push, or pull that causes an object to move, stop, or change speed or direction?
Force
1. Name three different objects in the room with potential energy.
2. Order them from the most amount of potential energy to the least amount of potential energy.
A clock, a book on a desk, and a pencil on the floor.
Which point on a roller coaster would the kinetic energy be the highest?
At the bottom of the hill
Like poles ___________ and opposite poles ___________.
repel, attract