PHYSICS 1

If an object is at rest, what is its kinetic energy?

• A. Zero
• B. Equal to its mass
• C. Equal to its velocity squared
• D. Cannot be determined

Which of these best explains kinetic energy?

• A. Energy stored in an object due to its position
• B. Energy possessed by a moving object
• C. Energy required to overcome friction
• D. Energy lost during collisions

Two objects have the same velocity. Object A has twice the mass of Object B. How does their kinetic energy compare?

• A. Object A has half the kinetic energy of Object B
• B. Both have the same kinetic energy
• C. Object A has twice the kinetic energy of Object B
• D. Object A has four times the kinetic energy of Object B

What is displacement?

• A. The total distance traveled by an object
• B. The change in position of an object in a specific direction
• C. The speed of an object at a particular instant
• D. The rate of change of velocity

Which of the following statements about acceleration is true?

• A. Acceleration is always positive.
• B. Acceleration occurs only when an object speeds up.
• C. Acceleration is the rate of change of velocity.
• D. Acceleration is the same as velocity.

6. At the highest point of a projectile’s trajectory, which of the following is true?

• A. Both the horizontal and vertical velocities are zero.

• B. Only the vertical velocity is zero.

• C. Both horizontal and vertical accelerations are zero.

• D. The horizontal velocity is zero, and the vertical velocity is at its maximum.

7. The time of flight of a projectile depends on which factor(s)?

• A. Only the initial horizontal velocity

• B. Only the initial vertical velocity

• C. Both the initial horizontal and vertical velocities

• D. Only the mass of the projectile

8. 8.Which of the following uses the Ideal Gas Law (PV = nRT) to calculate gas behavior?

• A) Calculating the pressure of a gas in a tire.

• B) Estimating the air pressure inside a football.

• C) Determining the amount of gas required for a balloon to rise.

• D) All of the above.

 9. If the temperature of an ideal gas increases at constant volume, what happens to its pressure?

• A. It decreases.

• B. It remains the same.
  
  

• C. It increases.

• D. It depends on the mass of the gas.

10. What does the internal energy of an ideal gas depend on?

• A. Both temperature and pressure
  

• 
  B. Only the pressure of the gas
  

• 
  C. Only the temperature of the gas
  

• 
  D. The volume of the gas