Physical science

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Answers to review handout

Schedule today• Homeroom7:35 – 7:452 Passing (P)

Class 7:45 – 7:487:48 – 8:10Period 2: 22 Class 8:10 – 8:138:13 – 8:35Period 1: 22 Class 8:35 – 8:388:38 – 9:00Period 3: 22 minutes Class 9:00 – 9:039:03 – 9:25 Period 4: 22 minutes

ASSEMBLY9:25 – NOON Classes will be called via the intercom2hr/35 minutes

Class12:00 – 12:0312:03 – 12:45Period 5 High School 42 minutes

HS Lunch12:45 – 1:15High School Lunch Class 1:15 – 1:181:18 – 1:50Period :7 32 minutesClass 1:50 – 1:531:53 – 2:252:25Period 6: 32 minutes

Announcements will be made prior to the dismissal bell as needed.

Remember….

• Density lab write-ups

• Chemistry hunt

• Finals review handout

Chapter 2 assessment (page 1)

1) A 2) D 3) C 4) B5) A 6) B 7) C 8) A9) B 10) B

11) 6 days, 2 hours12) -83.3 m/s213) Speed = 22.5 km/h, displacement = 014) There = 25.7 km/h, back = -20 km/h

Chapter 3 Assessment (page 2)

1) C 2) D 3) D 4) C5) C 6) A 7) B 8) C9) A 10) C

11) 637 N12) Increases friction between tire and snow14) Action: wheels pushing against ground

Reaction: ground pushing against wheels15) Elephant16) slide, static, roll, static, slide

Chapter 4 assessment (page 3)

1) D 2) B 3) A 4) A5) C 6) C 7) D 8) A9) B 10) B

12) EPE to KE13) Changes between GPE and KE, TE from

friction14) Mass can be converted to energy, vice versa15) 812.5 J

Pre AP/Critical thinking (page 4)

4a) 10 minutes

4b) 30 minutes

4c) Driver B (steeper slope to line)

4d) Both cars are at the same position at the same time (they cross paths)

Pre-AP/Critical thinking (page 5)

1a) C

1c) A