Test

What is the unit of force?

• Newton

• Joule

• Watt

• Pascal

Who formulated the laws of motion?

• Galileo Galilei

• Albert Einstein

• Isaac Newton

• Nikola Tesla

What is the speed of light in a vacuum?

• 150,000 km/s

• 299,792 km/s

• 1,080 km/h

• 299,792 m/s

What is the formula for kinetic energy?

• ½mv²

• mv²

• mgh

• Fd

Are you enjoying the video lesson?

• Yes

• No

Who discovered gravity?

• Johannes Kepler

• Galileo Galilei

• Albert Einstein

• Isaac Newton

What is the function of a transformer?

• Changes voltage

• Stores energy

• Generates electricity

• Measures resistance

What is the SI unit of work?

• Newton

• Watt

• Joule

• Pascal

What is the refractive index?

• Ratio of speed of light in vacuum to medium

• Energy per unit area

• Number of oscillations

• Mass of a photon