Motion, Forces, and Energy Comprehensive Quiz

What is deceleration fundamentally representing?

• Increase in velocity
• Decrease in velocity
• Constant velocity
• Zero velocity

On a distance-time graph, a curved line indicates what?

• Constant speed
• Zero movement
• Changing speed
• Instantaneous velocity

In the equation a = F/m, what does 'm' represent?

• Momentum
• Mass
• Acceleration
• Force

Which factor does NOT directly affect an object's motion?

• Friction
• Air resistance
• Wind direction
• Applied force

If an object travels 80 m in 5 seconds, what is its speed?

• 12 m/s
• 16 m/s
• 10 m/s
• 15 m/s

Which energy form represents stored energy in chemical bonds?

• Kinetic energy
• Gravitational potential energy
• Chemical energy
• Thermal energy

In a hydroelectric dam, what is the first energy conversion?

• Kinetic to electrical
• Gravitational potential to kinetic
• Thermal to electrical
• Chemical to mechanical

What causes the cooling effect during evaporation?

• Addition of cold molecules
• Removal of most energetic molecules
• Reduction of atmospheric pressure
• Increase in surface area

Why are metals good conductors of heat?

• High density
• Presence of free electrons
• Low specific heat
• Smooth surface

What is the primary function of a thermocouple?

• Generating electricity
• Measuring temperature
• Creating heat
• Storing thermal energy