Physical Science

Front

How the sun's energy, arriving as radiation, can be broken down into different types of wavelengths.

Back

The sun's energy arrives as radiation with a wide range of wavelengths, including infrared, visible, and ultraviolet, each having different effects on Earth.

Front

Design an experiment to demonstrate how light can be reflected, refracted, and absorbed.

Back

Use a mirror to show reflection, a glass of water to show refraction, and a black cloth to show absorption. Expect light to bounce off the mirror, bend in the water, and be absorbed by the cloth.

Front

Analyze a scenario where kinetic energy is transformed into potential energy and vice versa.

Back

A roller coaster at the top of a hill has maximum potential energy, which transforms into kinetic energy as it descends.

Front

Propose a method to investigate the transformation of energy from one form to another in a simple mechanical system.

Back

Use a pendulum to observe the transformation of potential energy into kinetic energy and back.

Front

Discuss how heat flows between objects of different temperatures and predict the final temperature when two objects are placed in contact.

Back

Heat flows from warmer objects to cooler ones until they reach the same temperature.

Front

Design a graph to represent the relationship between distance and time for an object moving at a constant speed.

Back

The graph should be a straight line with a positive slope, indicating constant speed.

Front

Evaluate the effects of different types of forces, including contact and non-contact forces, on an object's motion. Provide examples of each type of force.

Back

Contact forces include friction and tension, while non-contact forces include gravity and magnetism.

Front

How does the Law of Gravity explain the interaction between two objects with different masses and distances? Discuss the factors affecting gravitational force.

Back

Gravitational force is stronger between objects with more mass and less distance.

Front

Propose a scenario where an unbalanced force acts on an object, changing its speed or direction.

Back

A ball rolling down a hill experiences an unbalanced force, causing it to accelerate.

Front

Create a plan to measure and graph the motion of an object moving at a constant speed. Describe the tools and methods you would use.

Back

Use a stopwatch and a ruler to measure time and distance, then plot the data on a graph to show a straight line.