Table of Contents
Study Questions – Basic Physics Equations #
Speed (v = d/t) #
- A cyclist travels 150 meters in 30 seconds. Calculate their speed.
- How long will it take a car traveling at 20 m/s to cover a distance of 400 meters?
- If a runner maintains a speed of 3 m/s for 45 seconds, what distance will they cover?
Acceleration (a = (v-u)/t) #
- A car accelerates from rest to 15 m/s in 5 seconds. Calculate the acceleration.
- A train’s speed decreases from 30 m/s to 10 m/s in 4 seconds. What is its deceleration?
- What time will it take for a bicycle to accelerate from 2 m/s to 8 m/s with an acceleration of 0.5 m/s²?
Momentum (p = mv) #
- Calculate the momentum of a 5 kg bowling ball moving at 4 m/s.
- A 0.5 kg football has a momentum of 3 kg⋅m/s. What is its velocity?
- A car of mass 1200 kg is moving with a velocity of 20 m/s. Calculate its momentum.
Weight (W = mg) #
- Calculate the weight of a 75 kg person on Earth (g = 9.81 N/kg).
- A box weighs 200 N on Earth. What is its mass?
- Calculate the weight of a 2.5 kg book on Earth.
Density (ρ = m/V) #
- A cube of metal has mass 800 g and volume 100 cm³. Calculate its density.
- The density of water is 1000 kg/m³. What is the mass of 2 m³ of water?
- A material has density 2400 kg/m³ and mass 12 kg. Calculate its volume.
Volume (V = l × w × h) #
- Calculate the volume of a rectangular box with length 3 m, width 2 m, and height 4 m.
- A cube has sides of length 5 cm. What is its volume in cm³?
- A rectangular tank is 2 m long and 1.5 m wide. What height must it be to hold 9 m³?
Pressure (P = F/A) #
- A force of 500 N acts on an area of 2.5 m². Calculate the pressure.
- What force is needed to create a pressure of 40 Pa on an area of 0.5 m²?
- A pressure of 100 Pa is created by a force of 250 N. What is the area?
Work Done (W = F × d) #
- Calculate the work done when a force of 150 N moves an object 3 meters.
- How far does a 40 N force move an object to do 200 J of work?
- What force is needed to do 300 J of work over a distance of 15 meters?
Kinetic Energy (KE = ½mv²) #
- Calculate the kinetic energy of a 4 kg object moving at 3 m/s.
- A 1000 kg car has kinetic energy of 200,000 J. Calculate its speed.
- What is the mass of an object with kinetic energy 450 J when moving at 10 m/s?
