PRACTICE TEST

Mixed practice

10 questions · single correct answer · +1 correct, 0 incorrect/unanswered. Suggested time: 20 minutes. Practice scoring, not an official exam marking scheme.

Guest attempt: results are shown after submission but are not saved to an account.

Question 1 · Physics · Motion

A body starts from rest with constant acceleration 2 m/s². Its speed after 3 s is:

A. 2 m/sB. 3 m/sC. 6 m/sD. 9 m/s

Question 2 · Physics · Motion

A runner completes one lap and returns to the start. The displacement is:

A. The lap lengthB. ZeroC. Half the lap lengthD. Twice the lap length

Question 3 · Physics · Laws of motion

A net force of 12 N acts on a 3 kg mass. The acceleration is:

A. 4 m/s²B. 9 m/s²C. 15 m/s²D. 36 m/s²

Question 4 · Physics · Laws of motion

Action and reaction forces act on:

A. The same bodyB. Different bodiesC. Only stationary bodiesD. Only bodies with equal mass

Question 5 · Chemistry · Mole concept

How many moles are present in 18 g of water? Use molar mass 18 g/mol.

A. 0.5 molB. 1 molC. 2 molD. 18 mol

Question 6 · Chemistry · Mole concept

At the same temperature and pressure, equal volumes of ideal gases contain equal:

A. MassesB. DensitiesC. Numbers of moleculesD. Molar masses

Question 7 · Chemistry · Atomic structure

The maximum number of electrons in a shell with principal quantum number n = 2 is:

A. 2B. 4C. 8D. 18

Question 8 · Chemistry · Atomic structure

Isotopes of an element have the same number of:

A. NeutronsB. ProtonsC. NucleonsD. Neutrons plus electrons

Question 9 · Biology · Cell biology

Which organelle is the main site of aerobic ATP production in a eukaryotic cell?

A. RibosomeB. MitochondrionC. Golgi apparatusD. Lysosome

Question 10 · Biology · Cell biology

Ribosomes are directly involved in:

A. Lipid digestionB. Protein synthesisC. DNA replicationD. Photosynthetic carbon fixation