Is energy conserved?

Objects fall due to gravityKeywords (English): gravity – falling bodies – acceleration – motion

Direction of gravitational influenceKeywords (English): gravity direction – force – downward motion – mass

Gravity between the sun, earth and moonKeywords (English): gravity – sun – Earth – moon – orbital motion

Gravity and MagnetismKeywords (English): gravity – magnetism – attractive forces – physics

Energy transformations in Newton's pendulumKeywords (English): Newton’s cradle – energy transfer – collision – motion

The effect of the mass of bodies in collisionKeywords (English): mass effect – collision – momentum – impact force

The relationship between the mass of objects and their velocityKeywords (English): mass – speed – momentum – motion – physics

The relationship between velocity and kinetic energyKeywords (English): kinetic energy – speed – mass – motion – physics

save momentumKeywords (English): conservation of momentum – collision – mass – velocity – linear momentum

Keywords: Electrical energy – Conversion – Motion – Light – Heat

purpose of experiment To realize the concept of energy survival Experiment Tools: Simple Pendulum - Double Pendulum Steps of the experiment Pull the pendulum ball up from its rest position and release it, and see what happens. Get a double pendulum or two similar pendulums. Pull the ball of one of t......

the goal:Explanation of thermal energy transformations.Materials and tools:Magnesium sulfate - Calcium chloride - Distilled water - Glass beaker - Thermometer - Scale - Glass pipette - Spoon.Steps:1- Fill the glass beaker with 100 ml of water and record the temperature using the thermometer.2- Weigh......

Force and Acceleration force – acceleration – Newton’s second law – mass

Hooke's lawHooke’s law – spring – force – extension

Keywords: Potential energy – Kinetic energy – Transformation – Gravity – Motion

Keywords: Height of the object – Potential energy – Gravity – Mass – Physics

the goal:Draw a conclusion about the Law of Conservation of Mass.Materials and tools:Wire crucible - Test tube - Balloon - Sensitive scale - Heater - Hot water bath - Test tube holder - Stopwatch - TissuesSteps:1. Place a piece of wire crucible in a medium-sized test tube.2. Attach the balloon nozzl......

The acceleration due to gravitygravitational acceleration – free fall – motion – time – gravity

Do some light bulbs waste less energy than others?Keywords (English): light bulbs – energy efficiency – electricity consumption – lighting – comparison

Keywords: Conservation of mass – Chemical reaction – Change – Reactants – Products

Keywords: Energy – Transformation – Heat – Motion – Light

Keywords: Energy conversion – Motion – Electricity – Light – Heat

Keywords: Attraction – Repulsion – Forces – Charges – Magnet

Keywords: Orbits – Planets – Moons – Gravity – Solar system

Keywords: Mass – Matter – Measurement – Balance – Volume

Objective: To investigate the transfer of energy from one form to another.Materials: Desk lamp – Paper spiral – Thin thread – Pencil.Procedure: Use the pencil to make a small hole in one end of the paper spiral Pass the thread through the hole and tie a knot to fix the spiral Tie the other end of th......

Objective: To investigate the effect of mass on the speed of falling objects under Earth's gravity.Materials: Three identical unsharpened pencils – String or ribbon to tie the pencils.Steps: Tie two pencils together using the string, leaving the third pencil separate. Raise all three pencils to the......