5 Written Questions
5 Matching Questions
- Newton's 1st Law of Motion
- a the distance an object moves during a certain amount of time (miles per second; mph) Average speed = Distance divided by time
- b When all the forces act on an object that are balanced and the object doesn't move; no net force.
- c An object in motion will stay in motion unless a force acts on it. An object at rest will stay at rest unless a force acts on it.(No Net Force)
- d movement of objects, people, or animals in many different directions
- e ends of magnets and the North Pole and South Pole: Positive &amp; Negative poles, opposites attract (a + and - or (North &amp; South); like poles repel (push away: South &amp; South, North &amp; North, 2 + or 2-)
5 Multiple Choice Questions
- a force that attracts certain metals and other magnets without touching; push or pulls on other objects
- a tool or device that makes work easier by changing the direction or the amount of force needed to move an object; DOES NOT make less work.
- a machine that consists of a few parts.
- When the 1st object puts a force on a 2nd object, the 2nd object will put a force back on the 1st object as well. Exam: using a hammer to pound a nail, the hammer is creating a force on the nail and the nail is creating a force back on the hammer.
- a machine made of more than one simple machine
5 True/False Questions
Work → a force that moves an object; no work is done if an object doesn't move. Force X Distance = Work
Push/pull → will demonstrate in class
Friction → the force that slows down objects by rubbing against them
Inertia → Force is measured in units called Newtons (not the cookie)
Point of Reference → When a force acts on an object and causes it to move (may be in the same direction or in opposite directions).