MCAT · Practice Sheet 3

1. 1.

   Biology

   Under a microscope, an object of actual size 3.2 mm appears 70.4 mm. Find the magnification.

   Formula:Microscope Magnification

   $M = \dfrac{\text{image size}}{\text{actual size}}$

   View formula →
2. 2.

   Chemistry

   How many moles are present in 36 g of water (H₂O) (molar mass = 18 g/mol)?

   Formula:Number of Moles

   $n = \dfrac{m}{M}$

   View formula →
3. 3.

   Physics

   Find the density of an object with mass 87 g and volume 12 cm³.

   Formula:Density

   $\rho = \dfrac{m}{V}$

   View formula →
4. 4.

   Physics

   Find the kinetic energy of a 2 kg object moving at 22 m/s.

   Formula:Kinetic Energy

   $KE = \tfrac{1}{2}mv^{2}$

   View formula →
5. 5.

   Physics

   If 2,881 J of work is done in 21 s, find the power.

   Formula:Power

   $P = \dfrac{W}{t}$

   View formula →
6. 6.

   Chemistry

   Find the molarity of a solution containing 1.5 mol of solute in 0.5 L of solution.

   Formula:Molarity

   $M = \dfrac{n}{V}$

   View formula →
7. 7.

   Physics

   Find the force required to accelerate a 20 kg mass at 2 m/s².

   Formula:Newton's Second Law (F = ma)

   $F = ma$

   View formula →
8. 8.

   Chemistry

   Find the molarity of a solution containing 2.5 mol of solute in 0.5 L of solution.

   Formula:Molarity

   $M = \dfrac{n}{V}$

   View formula →
9. 9.

   Physics

   Find the voltage across a 6 Ω resistor carrying a current of 2 A.

   Formula:Ohm's Law

   $V = IR$

   View formula →
10. 10.

    Chemistry

    Find the pH of a solution with [H⁺] = 5×10⁻4 mol/L.

    Formula:pH of a Solution

    $pH = -\log_{10}[H^{+}]$

    View formula →
11. 11.

    Physics

    Find the voltage across a 50 Ω resistor carrying a current of 17 A.

    Formula:Ohm's Law

    $V = IR$

    View formula →
12. 12.

    Biology

    Under a microscope, an object of actual size 0.9 mm appears 9 mm. Find the magnification.

    Formula:Microscope Magnification

    $M = \dfrac{\text{image size}}{\text{actual size}}$

    View formula →
13. 13.

    Physics

    Find the momentum of a 41 kg body moving at 27 m/s.

    Formula:Linear Momentum

    $p = mv$

    View formula →
14. 14.

    Physics

    A projectile is launched at 37 m/s at 60° to the horizontal. Find its range (g = 9.8 m/s²).

    Formula:Projectile Range

    $R = \dfrac{u^{2}\sin 2\theta}{g}$

    View formula →
15. 15.

    Chemistry

    A solution is made by dissolving 36 g of solute in 52 g of solvent. Find the mass percentage of the solute.

    Formula:Mass Percentage

    $\%\,\text{mass} = \dfrac{\text{solute}}{\text{solution}}\times 100$

    View formula →
16. 16.

    Physics

    Find the force required to accelerate a 39 kg mass at 12 m/s².

    Formula:Newton's Second Law (F = ma)

    $F = ma$

    View formula →
17. 17.

    Chemistry

    Find the pH of a solution with [H⁺] = 5×10⁻6 mol/L.

    Formula:pH of a Solution

    $pH = -\log_{10}[H^{+}]$

    View formula →
18. 18.

    Physics

    Find the momentum of a 6 kg body moving at 34 m/s.

    Formula:Linear Momentum

    $p = mv$

    View formula →
19. 19.

    Chemistry

    Find the pressure of 4 mol of an ideal gas at 261 K in a 11 L container (R = 0.0821 L·atm·mol⁻¹·K⁻¹).

    Formula:Ideal Gas Law

    $PV = nRT$

    View formula →
20. 20.

    Physics

    Find the momentum of a 23 kg body moving at 13 m/s.

    Formula:Linear Momentum

    $p = mv$

    View formula →

© FormulaWon — formulawon.app · Answers & step-by-step working available on the solutions sheet.