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# Physical Science Test Review Chapter 1,2 PowerPoint PPT Presentation

Physical Science Test Review Chapter 1,2. Layout 10 vocabulary 10 problems 2 bonus. 10 Vocabulary. I give scenarios describing the definitions, you give the word or phrase Words used: Technology Hypothesis Scientific method Fact Law. Vocabulary Continued. Velocity Inertia

Physical Science Test Review Chapter 1,2

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### Physical Science Test Review Chapter 1,2

• Layout

• 10 vocabulary

• 10 problems

• 2 bonus

### 10 Vocabulary

• I give scenarios describing the definitions, you give the word or phrase

• Words used:

• Technology

• Hypothesis

• Scientific method

• Fact

• Law

### Vocabulary Continued

• Velocity

• Inertia

• Pseudoscience

• Net force

• equilibrium

### 2 Bonus

• Scientific Contributors

• Naming 3 facts about scientist

• Aristotle

• Galileo

• Newton

### 10 problems

• Speed

• Net force

• Scale

• Sliding blocks

• Max and min forces

### Speed

• S = d/t

• d = 45 m, t = 9 s, s =

• S = 77 m/s, t = 10 s, d =

• D = 450 km, s = 18 hr, t =

• D = 900 m, s = 50 m/hr, t=

• T = 50 min, s = 60 mi/hr, d =

• T = 9 hr, s = 40 m/hr, d =

### Net Force

• Of you sitting/standing?

• 8902 N to left, 74902 N to left

• 7980 N to left, 7980 N to right

• 7025 N to left, 7920 N to right

• One force twice the other, both to left

• One force twice the other, larger to left

• Equal forces to left

• Equal forces to left and right

### Scale

• How many scales to stand on if you want

• What the scales would read if

• 300 N person stands on two scales, one is twice the other

• 300 N person stands on three scales, one is twice another, but the other two are equal

### Sliding

• We slide a box across the floor to the left 70 N. What is the force of friction? What direction?

• I push a box 60 N to left. My brother pushes it 160 N to right. Net force on box = ? Friction =?

• I push a box with an equal force as you in the same direction. What is the force of friction?

• I push a desk in a different direction as you with the same force. Net force = ? Friction = ?

### Max/min

• Between

• 789 N and 8790 N

• 790 N and 7671 N

• 6146 N and 6718 N

• 57189 N and 678 N

• 3059 N and 7891 N

• 5194 N and 786N

• 86 N and 781 N

### You try

• P. 13 and 31 – all problems but the key terms