Front

What type of electromagnetic waves are used in ovens and cell phone communications?

Back

Microwaves

Front

Identify the elements in the formula Na2SO4.

Back

Sodium, Sulfur, Oxygen

Front

What are the electromagnetic waves that help your body produce vitamin D?

Back

Ultraviolet rays

Front

What is the force required to accelerate a 10 kg object upward at 2 m/s²?

Back

20 N

Front

What type of galaxy is the Milky Way?

Back

Spiral

Front

What is the definition of infrared rays?

Back

Electromagnetic waves with wavelengths longer than visible light but shorter than microwaves, used in remote controls and thermal imaging.

Front

What is the role of ultraviolet rays in human health?

Back

They help the body produce vitamin D, which is essential for bone health.

Front

What is the formula for calculating force?

Back

Force = Mass × Acceleration (F = m × a)

Front

What are the three main types of galaxies?

Back

Spiral, Elliptical, Irregular

Front

What is the definition of a galaxy?

Back

A massive system of stars, stellar remnants, interstellar gas, dust, and dark matter bound together by gravity.