## ← Back to Combo with "Science Chapter 13-List 4" and 3 others

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of 28 available terms

### 5 Matching questions

1. Inertia
2. Push/pull
3. Gravity
4. Newton's 2nd Law of Motion
5. Net Force
1. a a force that pulls everything toward the center of the Earth
2. b the relationship between mass, acceleration & force. Force = Mass X Acceler.
3. c the force that keeps objects moving in a straight line; resists a change in motion
4. d will demonstrate in class
5. e When a force acts on an object and causes it to move (may be in the same direction or in opposite directions).

### 5 Multiple choice questions

1. a machine made of more than one simple machine
2. Force is measured in units called Newtons (not the cookie)
3. the flow of electrically charged particles, electrons, between objects.
4. the distance an object moves during a certain amount of time (miles per second; mph) Average speed = Distance divided by time
5. work is done in a certain time. Work divided by time = power; measured in Watts

### 5 True/False questions

1. EquilibriumWhen all the forces act on an object that are balanced and the object doesn't move; no net force.

2. Machinea 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.

3. Point of ReferenceWhen a force acts on an object and causes it to move (may be in the same direction or in opposite directions).

4. Frictionmovement of objects, people, or animals in many different directions

5. Simple Machinea machine made of more than one simple machine

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