Bright New Ideas

1- created the first working laser.

• a. Robert Goddard

• b. Theodore Maiman

• c. Barbara Askins

_________________can warn of earthquakes, track flying objects for the military, and are used in operating rooms in addition to supermarkets.

• a. lasers

• b. computers

• c. transistors

1- In ____________________ , all the energy is focused in only one wavelength.

• a. electric light

• b. laser light

• c. blue light

1- The _______________ is very powerful.

• a. laser light

• b. electric light

• c. red light

1- There are __________________ that are millions of times brighter

than ordinary sunlight.

• a. stars

• b. Moon

• c. some laser beams

1- Laser temperatures have been recorded at more than that of the surface of the sun.

• a. twice

• b. third

• c. fourth

_________________ cut skin without causing bleeding or scarring.

• a. threads

• b. needles

• c. laser beams

A laser can drill through ____________________

• a. iron

• b. steel

• c. nickel

A laser can drill a hole in a ______________________ in minutes.

• a. diamond

• b. table

• c. wooden box

Laser light is the same as electric light.

• False

• true