WorksheetsExploring the World of Physics
Total questions: 10
Worksheet time: 5mins
What is the formula for calculating force?
F = m - a
F = m / a
F = m * a
F = m + a
Define Newton's First Law of Motion.
An object will remain in motion only if it is in a vacuum.
An object will accelerate unless a force is applied.
An object will change direction only when a force is applied.
An object will remain at rest or in uniform motion unless acted upon by an external force.
What is the unit of energy in the International System of Units?
watt
calorie
volt
joule
Explain the concept of kinetic energy.
Kinetic energy is calculated as KE = mv².
Kinetic energy is the energy stored in an object at rest.
Kinetic energy is the energy of an object when it is at its highest point.
Kinetic energy is the energy of an object in motion, calculated as KE = 1/2 mv².
What is the difference between speed and velocity?
Speed is a vector; velocity is scalar.
Speed measures distance; velocity measures time.
Speed is always constant; velocity can change.
Speed is scalar; velocity is vector (includes direction).
State the law of conservation of energy.
Energy cannot be created or destroyed, only transformed.
Energy is always lost in transformations.
Energy can be created and destroyed.
Energy can only be created from matter.
What is the acceleration due to gravity on Earth?
9.00 m/s²
10.5 m/s²
8.9 m/s²
9.81 m/s²
Describe what a wave is in physics.
A wave is a type of particle that cannot transfer energy.
A wave is a disturbance that transfers energy through space or matter.
A wave is a solid object that does not move.
A wave is a fixed position in space that does not change.
What is the principle of buoyancy?
Buoyancy is the force that pulls objects down in a fluid.
An object submerged in a fluid experiences an upward force equal to the weight of the fluid displaced.
An object in a fluid will float if it is heavier than the fluid.
An object submerged in a fluid experiences a downward force equal to the weight of the fluid displaced.
How does friction affect motion?
Friction only affects stationary objects.
Friction increases the speed of moving objects.
Friction opposes motion and can slow down or stop moving objects.
Friction has no effect on motion.
