Physics Multiple Choice Questions

Which instrument is best for measuring the diameter of a small wire?

• Ruler

• Vernier caliper

• Micrometer screw gauge

• Protractor

What is the SI unit of density?

• g/cm³

• kg/m³

• N/m³

• Pa

Which quantity is a vector?

• Speed

• Mass

• Velocity

• Time

What is the acceleration of free fall on Earth?

• 8.9 m/s²

• 9.8 m/s²

• 10.8 m/s²

• 9.0 m/s²

Weight is defined as:

• Mass × Volume

• Force × Distance

• Mass × g

• Density × Volume

Hooke’s Law states that extension is proportional to:

• Load

• Mass

• Area

• Time

What is the resultant force on an object of mass 5 kg accelerating at 2 m/s²?

• 2.5 N

• 5 N

• 10 N

• 20 N

Which graph’s gradient gives velocity?

• Displacement–time graph

• Velocity–time graph

• Acceleration–time graph

• Force–time graph

9. The method used to measure the volume of an irregular solid is:

• Displacement method

• Using a ruler

• Weighing scale

• Measuring tape

Which law explains rocket propulsion?

• Newton’s 1st law

• Newton’s 2nd law

• Newton’s 3rd law

• Hooke’s law