Choose One of the Following Equations

An object displaces 4 mL and is 24 g. Calculate the object's density.
v = 4 mL
m = 24 g
D = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
How much heat is lost by a 25 g piece of Aluminum that goes from 34^o C to 20^o C. The specific heat of Aluminum is 0.215 calories/(gram^oC).
m = 25 g
ΔT = -14^oC
Cp = 0.215 calories/(gram^oC)
Q = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
How far does a bicycle travel if it is moving at 3 m/s for 6 sec?
d =? (your unknown)
v = 3 m/s
t = 6 sec

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
A racecar starts at rest at the starting line of a race. If 3 seconds later it is going 75 m/sec, find its acceleration.
vi = 0 m/s (at rest)
vf = 75 m/s
Δt = 3 sec
a = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
A 300 kg object has 150 kgm/sec of momentum. How fast is it moving?
m = 300 kg
p = 150 kgm/sec
v = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
How much force causes a 25 kg object to accelerate 3 m/sec²?
F = ? (your unknown)
m = 25 kg
a = 3 m/sec²

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
A sled is pushed with 10 N for 0.5 meters. How much work was done?
F = 10 N
d = 0.5 m
W = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
40 watts of power is generated in 20 seconds. How much work was done?
P = 40 w
t = 20 sec
W = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
A pulley system uses 400 J to lift a 300 J object. How efficient is the pulley system?
Wi = 400 J
Wo = 300 J (the object you are moving is always your output)
% = ? (your unknown) [Many books use "Eff" for efficiency.]

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
A 10 kg bike is moving 3 m/s. How much kinetic energy does it have?
m = 10 kg
v = 3 m/s
KE = ? (your unknown)

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh
A 4 kg rock is thrown 6 meters up into the air. How much potential energy does it have?
m = 4 kg
h = 6 m ("d" and "h" are both in meters, bu if it goes up, we call it "h" for height.)
g = 9.8 m/sec² (It is at the bottom of the TAKS chart, if you forget it.)
PE = ?

What equation will you use? (From your TAKS formula sheet.)
1. D = m/v
2. Q = (m)(ΔT)(C_p)
3. v = d/t
4. a = (v_f - v_i)/(Δt)
5. p = mv
6. F = ma
7. W = Fd
8. P = W/t
9. % = (Wo/Wi) x 100
10. KE = (mv²)/2
11. PE = mgh