Quiz

Which of the following is a vector quantity?

• A. Mass
• B. Speed
• C. Distance
• D. Force

What is the SI unit of electric current?

• A. Volt
• B. Ampere
• C. Ohm
• D. Watt

Which of these represents Newton's second law of motion?

• A. F = ma
• B. F = m/v
• C. F = mgh
• D. F = mv

What is the SI unit of energy?

• A. Joule
• B. Newton
• C. Watt
• D. Kilogram

Which of these is an example of electromagnetic wave?

• A. Sound wave
• B. X-ray
• C. Water wave
• D. Seismic wave

What does the term "resistance" refer to in electrical circuits?

• A. Voltage drop
• B. Flow of electrons
• C. Opposition to current flow
• D. Energy storage

What happens to the speed of an object if no external force is acting on it?

• A. Increases
• B. Decreases
• C. Remains constant
• D. Varies randomly

Which law of thermodynamics states that energy cannot be created or destroyed?

• A. Zeroth law
• B. First law
• C. Second law
• D. Third law

What is the main function of a concave lens?

• A. To magnify objects
• B. To reduce the size of objects
• C. To correct vision problems
• D. To focus light rays

Which of these is NOT a fundamental particle of an atom?

• A. Electron
• B. Proton
• C. Neutron
• D. Photon