Experimental physics is like playing with toys to discover new things about the world around us. Scientists use special tools and equipment to do experiments and see how things work. They might use microscopes to look at tiny things or telescopes to look at faraway things in space.
Just like how you might try different things with your toys to see what happens, scientists do experiments to learn how things behave. For example, they might drop a ball from different heights to see how fast it falls or they might heat up different materials to see how they change.
Sometimes, scientists make special machines or devices to help them do their experiments. For example, they might make a particle accelerator to study tiny particles that make up matter. They might also use lasers to study the behavior of light.
Overall, experimental physics is all about using fun and interesting tools to understand how the world works and discover new things.