Physics Career Pathways

Try these questions

5 questions from this lesson’s quiz. Start the lesson to answer them and see the right answers.

1. 1. Small gaps are left between consecutive rails on the Standard Gauge Railway. What is the main reason for these gaps?

   • A. To allow the rails to expand on hot days without buckling
   • B. To reduce the mass of the track
   • C. To make the train run faster
   • D. To let rainwater drain between the rails

2. 2. A diver swims at a depth of 20 m in fresh water of density 1000 kg/m^3. Calculate the pressure due to the water at this depth. Use g = 10 N/kg.

   Type your answer (in Pa) in the lesson.

3. 3. Name the law that states that the extension of a spring is directly proportional to the applied force, provided the elastic limit is not exceeded.

   Type your answer in the lesson.

4. 4. Which type of engineer mainly applies thermodynamics, forces and machine efficiency to design engines and cooling systems?

   • A. Civil engineer
   • B. Mechanical engineer
   • C. Electrical engineer
   • D. Diagnostic radiographer

5. 5. The wall of a dam is built much thicker at the bottom than at the top. Which idea from fluid pressure explains this?

   • A. Water pressure decreases as depth increases
   • B. Water pressure increases as depth increases
   • C. Water pressure depends only on the width of the dam
   • D. Water pressure acts only in the downward direction

More in Introduction to Physics

• ▸Core Branches of Physics
• ▸Modern Branches of Physics
• ▸Relationship of Physics to Other Disciplines
• ▸Physics in Daily Life and Nation
• ▸Introduction to Pressure and Solid Pressure
• ▸Atmospheric Pressure and Its Demonstrations
• ▸Pressure in Liquids and Depth
• ▸The Fluid Pressure Formula

See every Grade 10 Physics lesson →