NIP QUIZ 1 PHYSICS

A particle moves with a constant acceleration of 2 m/s². If its initial velocity is 5 m/s, what is its velocity after 3 seconds?

• 11 m/s

• 6 m/s

• 9 m/s

• 15 m/s

A car of mass 1000 kg accelerates from rest to 20 m/s in 8 seconds. What is the average power developed by the engine?

• 25,000 W

• 20,000 W

• 12,500 W

• 10,000 W

A ball is thrown vertically upward with initial speed 30 m/s. How long does it take to reach the highest point? (Take g = 10 m/s²)

• 3 s

• 6 s

• 9 s

• 30 s

A block slides down a frictionless incline of height 5 m. What is the velocity of the block at the bottom? (g = 10 m/s²)

• 10 m/s

• 5 m/s

• 15 m/s

• 20 m/s

A force F acts on a body of mass m producing acceleration a. If the force doubles and mass halves, what is the new acceleration?

• a/4

• 4a

• 2a

• a/2

An object of mass 2 kg is raised through height 10 m. What is the work done against gravity? (g=10 m/s²)

• 200 J

• 20 J

• 100 J

• 10 J

A machine does 600 J of work in 5 seconds. What is its power output?

• 120 W

• 600 W

• 3000 W

• 5 W

The kinetic energy of a body is 200 J when moving at 10 m/s. What is its mass?

• 4 kg

• 2 kg

• 10 kg

• 20 kg

A cube of volume 0.01 m³ is submerged in water (density 1000 kg/m³). What is the buoyant force on it? (Take g = 10 m/s²)

• 100 N

• 10 N

• 1 N

• 1000 N

A liquid exerts a pressure of 2×10⁴ Pa at depth 2 m. What is the density of the liquid? (g=10 m/s²)

• 1000 kg/m³

• 2000 kg/m³

• 500 kg/m³

• 4000 kg/m³