ap mc review -not college board questions- -calculator required-
TRANSCRIPT
AP MC review
-not College Board questions-
-calculator required-
test the clickerson the next slide
(figure this out…)(keep quiet)
sound : tweeter :: light :
LED
refle
ctio
n
shad
ow
mirr
or
0% 0%0%0%
1. LED
2. reflection
3. shadow
4. mirror
20
0of30
See figure
A B C D E
6%
12%
53%
29%
0%
1. A
2. B
3. C
4. D
5. E
1. E
the force will always be in the direction of the change in velocity
See figure
A B C D E
41%
35%
0%
6%
18%
1. A
2. B
3. C
4. D
5. E
2. C
P = dW/dT so dW=P/dT = 1/2mv2 and since P is constant, T becomes v2 or v √T
v2 / v = √2T / √T v2 = √2v
See figure
A B C D E
53%
6%
0%
24%
18%
1. A
2. B
3. C
4. D
5. E
3. D
your text; page 446
See figure A B C D E
24%
18%
6%
24%
29%
1. A
2. B
3. C
4. D
5. E
4. A ( I only)
for SHM, the second derivative of a fn = - (constant)(original fn).
The negative sign makes it a restoring function.
See figure
A B C D E
20%
27%
0%0%
53%
1. A
2. B
3. C
4. D
5. E
5. C
L = L
mrv = mrv m’s cancel
4.6vp = 7.0va
vp = 1.52 va
See figure
A B C D E
6%
0%
44%
19%
31%
1. A
2. B
3. C
4. D
5. E
6. E (II and III)
the area under the F-t curve is impulse (change of momentum)
½ bh = 20 N-s
Ft=mv = 20N-s vf-5 = 20, vf=25
Ft=20 and t=4 so F=5
See figure
A B C D E
13%
0%
7%
53%
27%1. A
2. B
3. C
4. D
5. E
7. C
GMm/r2 = mv2/r
v = √(GM/r)
v800 / v0 = √((6400+400)/(6400+800))
v800 = 0.97 v0
See figure
A B C D E
18%
24%
6%
29%
24%
1. A
2. B
3. C
4. D
5. E
8. Cterminal velocity occurs when a = 0 or net F = 0 so find “a” and set it equal to zero.
if v = 10t – 2t2 then dv/dt = a = 10 – 4t set to zero makes t = 2.5 sec.
put 2.5 for t back into v equation and you get 12.5 m/s
See figure
A B C D E
27% 27%
0%
13%
33%
1. A
2. B
3. C
4. D
5. E
9. C
See figure
A B C D E
15%
23%
0%
23%
38%
1. A
2. B
3. C
4. D
5. E
10. Dthe speed of the rim of the wheel is the speed of the car…
v = rω = r(d/dt) = r(d(3t+2t2)/dt) = r(3+4t)
0.3(3+(4x5)) = 7 m/s
tally your results