50 Question 1st Semester Science Final Exam

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, causing a change in its speed.

Front

What is the net force acting on an object?

Back

The net force is the total force acting on an object after all the individual forces are combined. It determines the object's acceleration.

Front

Why does a blue paper appear blue?

Back

A blue paper appears blue because it absorbs all colors of light except blue, which it reflects.

Front

How does a lens focus light?

Back

A lens focuses light through the process of refraction, bending the light rays to converge at a point.

Front

What type of energy is found in fossil fuels?

Back

Fossil fuels like coal, oil, and natural gas contain chemical energy, which is released when they are burned.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing back of light when it hits a surface, while refraction is the bending of light as it passes through different media.

Front

What is diffraction?

Back

Diffraction is the bending of waves around obstacles and openings, which can cause spreading of waves.

Front

What is chemical energy?

Back

Chemical energy is the energy stored in the bonds of chemical compounds, which can be released during a chemical reaction.

Front

What is the formula for calculating net force?

Back

Net force = Total upward forces - Total downward forces.

Front

What happens to light when it passes through a prism?

Back

When light passes through a prism, it is refracted and separated into its component colors, creating a spectrum.