Tuesday, January 16, 2007

Honors Midyear Answers 1-20

Here are answers for Honors Midyear Review 1-20

Honors Midyear Practice Answers 07

1 a heat
b motion, forces momentum, and macroscopic energy,
c interaction of particles at molecular, atomic, and subatomic scales
d light

2 models which focus on the most relevant features

3 a sec b meters c kg d Joules

4A a fusion b fission c fission d fusion

4B a 4C a 4D c 4E b 4F d

5 d

6 skip

7 a acceleration; b velocity; c height; d angle.

8 b. m/s2 d. m2/s3 f. s2 g. 1/s2 h. 1/s2 .

9. v = Dx/Dt a= 2Dx/Dt2

10. c

11. b

12 velocity : +,-,0 a: 0, +,-

13 a = (16-1)/3 = 5 m/s2

14 vavg = (30 +0)/2 =15 a = (30-0)/4 = 7.5 m/s2 Dx = vavg Dt = 15x4=60

15.a +,-; b 0,-; c +,+?; d -,-

16 a

17 a

17.a . 4 sec

18 quantity; quantity with direction; sum of two or more vectors; environment from which measurements or observations are made - usually an entire frame of reference moves with a single velocity
19. a
20 Vectors: force acceleration, momentum, displacement, Scalars mass energy volume speed

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