Q. In the context of biomechanics, what does the term 'force' refer to?
-
A.
A push or pull on an object
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B.
The weight of an object
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C.
The pressure exerted by fluids
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D.
The energy transferred to an object
Solution
In biomechanics, 'force' refers to a push or pull on an object that can cause it to accelerate.
Correct Answer:
A
— A push or pull on an object
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Q. In the context of prosthetics, how does friction affect the fit?
-
A.
Improves comfort
-
B.
Causes slippage
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C.
Enhances stability
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D.
Reduces wear
Solution
Excessive friction can cause slippage, making the prosthetic less effective.
Correct Answer:
B
— Causes slippage
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Q. Solve for x: 10x + 5 = 3x + 20.
-
A.
x = 3
-
B.
x = 2
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C.
x = 4
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D.
x = 5
Solution
Subtract 3x from both sides: 7x + 5 = 20. Subtract 5: 7x = 15. Divide by 7: x = 15/7.
Correct Answer:
C
— x = 4
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Q. Solve for x: 2x + 5 = 15
-
A.
x = 5
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B.
x = 10
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C.
x = 2.5
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D.
x = 7.5
Solution
Subtract 5 from both sides: 2x = 10. Then divide by 2: x = 5.
Correct Answer:
A
— x = 5
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Q. Solve for x: 7x - 3 = 4x + 12.
-
A.
x = 5
-
B.
x = 3
-
C.
x = 4
-
D.
x = 6
Solution
Subtract 4x from both sides: 3x - 3 = 12. Add 3: 3x = 15. Divide by 3: x = 5.
Correct Answer:
A
— x = 5
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Q. Subtract 5/6 from 7/8.
-
A.
1/24
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B.
1/12
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C.
1/8
-
D.
1/6
Solution
To subtract 5/6 from 7/8, find a common denominator, which is 24. Convert: 7/8 = 21/24 and 5/6 = 20/24. So, 21/24 - 20/24 = 1/24.
Correct Answer:
B
— 1/12
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Q. What happens to the pressure in a closed container if the temperature of the gas inside is increased?
-
A.
Pressure decreases
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B.
Pressure remains constant
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C.
Pressure increases
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D.
Pressure fluctuates
Solution
According to Gay-Lussac's Law, if the temperature of a gas in a closed container increases, the pressure also increases.
Correct Answer:
C
— Pressure increases
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-
A.
1/4
-
B.
1/2
-
C.
1/3
-
D.
1/8
Solution
To find 1/3 of 3/4, multiply: (1/3) * (3/4) = 3/12 = 1/4.
Correct Answer:
B
— 1/2
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Solution
15% of 200 = (15/100) × 200 = 30.
Correct Answer:
B
— 30
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-
A.
7/8
-
B.
5/8
-
C.
3/4
-
D.
1
Solution
Convert 1/2 to a common denominator of 8: 1/2 = 4/8. So, 3/8 + 4/8 = 7/8.
Correct Answer:
A
— 7/8
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Q. What is a common consequence of excessive friction during physical therapy?
-
A.
Increased muscle strength
-
B.
Skin irritation
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C.
Improved flexibility
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D.
Enhanced circulation
Solution
Excessive friction can lead to skin irritation, which may hinder the therapy process.
Correct Answer:
B
— Skin irritation
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Q. What is a common respiratory condition linked to long-term exposure to coal mining?
-
A.
Chronic bronchitis
-
B.
Emphysema
-
C.
Pneumonia
-
D.
Tuberculosis
Solution
Chronic bronchitis is a common respiratory condition associated with long-term exposure to coal dust.
Correct Answer:
A
— Chronic bronchitis
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Q. What is the area of a circle with a diameter of 10 cm?
-
A.
25π cm²
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B.
50π cm²
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C.
75π cm²
-
D.
100π cm²
Solution
Area = π * (radius)² = π * (10/2)² = π * 25 = 25π cm².
Correct Answer:
A
— 25π cm²
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Q. What is the area of a circle with a radius of 5 cm?
-
A.
25π cm²
-
B.
50 cm²
-
C.
78.5 cm²
-
D.
15.7 cm²
Solution
Area = π * r² = π * 5² = 25π cm² ≈ 78.5 cm².
Correct Answer:
A
— 25π cm²
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Q. What is the area of a parallelogram with a base of 10 cm and a height of 6 cm?
-
A.
60 cm²
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B.
50 cm²
-
C.
40 cm²
-
D.
30 cm²
Solution
Area = base * height = 10 * 6 = 60 cm².
Correct Answer:
A
— 60 cm²
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Q. What is the area of a rectangle with a length of 8 cm and a width of 3 cm?
-
A.
24 cm²
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B.
11 cm²
-
C.
30 cm²
-
D.
20 cm²
Solution
Area = length * width = 8 * 3 = 24 cm².
Correct Answer:
A
— 24 cm²
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Q. What is the area of a square with a side length of 4 cm?
-
A.
8 cm²
-
B.
12 cm²
-
C.
16 cm²
-
D.
20 cm²
Solution
Area = side² = 4² = 16 cm².
Correct Answer:
C
— 16 cm²
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Q. What is the area of a trapezoid with bases of 6 cm and 10 cm, and a height of 4 cm?
-
A.
32 cm²
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B.
24 cm²
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C.
20 cm²
-
D.
28 cm²
Solution
Area = 1/2 * (base1 + base2) * height = 1/2 * (6 + 10) * 4 = 32 cm².
Correct Answer:
B
— 24 cm²
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Q. What is the area of a triangle with a base of 10 cm and a height of 5 cm?
-
A.
25 cm²
-
B.
50 cm²
-
C.
15 cm²
-
D.
30 cm²
Solution
Area = 1/2 * base * height = 1/2 * 10 * 5 = 25 cm².
Correct Answer:
A
— 25 cm²
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Q. What is the atomic number of Aluminum?
Solution
The atomic number of Aluminum is 13.
Correct Answer:
A
— 13
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Q. What is the average sales per quarter for Product A based on the table?
-
A.
$500
-
B.
$1000
-
C.
$1500
-
D.
$2000
Solution
The total sales for Product A over 4 quarters is $4000, so the average is $1000.
Correct Answer:
B
— $1000
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Q. What is the circumference of a circle with a radius of 7 cm?
-
A.
14π cm
-
B.
21π cm
-
C.
7π cm
-
D.
28 cm
Solution
Circumference = 2 * π * radius = 2 * π * 7 = 14π cm.
Correct Answer:
A
— 14π cm
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Q. What is the cube of -3?
Solution
The cube of -3 is -3 * -3 * -3 = -27.
Correct Answer:
B
— -27
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Q. What is the cube of 5?
-
A.
15
-
B.
25
-
C.
125
-
D.
100
Solution
The cube of 5 is calculated as 5 * 5 * 5 = 125.
Correct Answer:
C
— 125
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Q. What is the cube root of 1,000,000?
-
A.
100
-
B.
1000
-
C.
10
-
D.
10000
Solution
The cube root of 1,000,000 is 100, since 100 * 100 * 100 = 1,000,000.
Correct Answer:
B
— 1000
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Q. What is the cube root of 64?
Solution
The cube root of 64 is 4, since 4 * 4 * 4 = 64.
Correct Answer:
B
— 4
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Q. What is the difference between 7/10 and 1/5?
-
A.
1/2
-
B.
1/5
-
C.
3/10
-
D.
2/5
Solution
To find the difference, convert 1/5 to a common denominator of 10: 1/5 = 2/10. So, 7/10 - 2/10 = 5/10 = 1/2.
Correct Answer:
C
— 3/10
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Q. What is the distance between the points (3, 4) and (7, 1) in the coordinate plane?
-
A.
5 units
-
B.
4 units
-
C.
6 units
-
D.
3 units
Solution
Distance = √((7-3)² + (1-4)²) = √(4 + 9) = √13.
Correct Answer:
A
— 5 units
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Q. What is the effect of blue light exposure on sleep?
-
A.
It enhances sleep quality
-
B.
It has no effect on sleep
-
C.
It disrupts circadian rhythms
-
D.
It promotes melatonin production
Solution
Blue light exposure disrupts circadian rhythms, affecting sleep.
Correct Answer:
C
— It disrupts circadian rhythms
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Q. What is the effect of friction on wound healing?
-
A.
Accelerates healing
-
B.
Delays healing
-
C.
Has no effect
-
D.
Promotes scarring
Solution
Excessive friction can delay healing by causing further tissue damage.
Correct Answer:
B
— Delays healing
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