Quiz about Unit 8 Energy Test Review

Question 1

What does it mean to bounce off a surface?

Accepted Answer

reflect

Answer

pitch

Answer

refract

Question 2

What is any push or pull?

Accepted Answer

force

Answer

energy

Answer

gravity

Question 3

What is the force of attraction between two objects?

Accepted Answer

gravity

Answer

force

Answer

energy

Question 4

What is the highness or lowness of a sound?

Accepted Answer

pitch

Answer

refract

Answer

tone

Question 5

What is the ability to do work?

Accepted Answer

energy

Answer

force

Answer

velocity

Question 6

True or False: A guitar string will vibrate if plucked.

Accepted Answer

True

Answer

False

Question 7

True or False: A high frequency wavelength has wave tops that are far apart.

Accepted Answer

False

Answer

True

Question 8

True or False: If you sing in a tile bathroom your voice will not echo.

Accepted Answer

False

Answer

True

Question 9

True or False: When there is a rainbow in the sky, raindrops acts as prisms.

Accepted Answer

True

Answer

False

Question 10

True or False: Humans can see all of the electromagnetic spectrum.

Accepted Answer

False

Answer

True

Question 11

True or False: Lenses are tools used for refracting light.

Accepted Answer

True

Answer

False

Question 12

True or False: The farther away an object is from the light source, the smaller the shadow.

Accepted Answer

True

Answer

False

Question 13

Potential or Kinetic: Running

Accepted Answer

Kinetic

Answer

Potential

Question 14

Potential or Kinetic: A ball on top of a hill

Accepted Answer

Potential

Answer

Kinetic

Question 15

Potential or Kinetic: A light switch turned off.

Accepted Answer

Potential

Answer

Kinetic

Question 16

Which of these machines is an example of a compound machine?

Accepted Answer

a pair of scissors

Answer

wedge

Answer

a wheel and axle

Answer

lever

Question 17

The words concave and convex describe

Accepted Answer

types of lenses

Answer

types of light

Answer

the light spectrum

Answer

sound waves

Question 18

To bend when passing from one object to another is to

Accepted Answer

refract

Answer

reflect

Answer

magnify

Answer

transparent

Question 19

Forces can affect the rate of an object's motion. Which of these is a force?

Accepted Answer

friction

Answer

acceleration

Answer

speed

Answer

velocity

Question 20

Astronauts in outer space float because one of the forces we experience on Earth is much less in space. Which force is it?

Accepted Answer

gravity

Answer

friction

Answer

velocity

Answer

acceleration

Question 21

Energy is involved when you turn on a lamp. The lamp changes electrical energy into light energy. Which other form of energy is also involved when the lamp is on?

Accepted Answer

heat energy

Answer

solar energy

Answer

sound energy

Answer

wind energy

Question 22

Skateboarding was first started in the 1950s, when all across California surfers got the idea of trying to surf on streets. Today, many people enjoy skateboarding. What change can a skateboarder make to increase the speed of a skateboard?

Accepted Answer

Make a ramp as smooth and slick as possible.

Answer

Make a longer ramp so it is not as steep.

Answer

Begin skateboarding from the middle of the ramp.

Answer

Wear a heavy backpack while skateboarding on a ramp.

Question 23

A book falls on the floor. Which is the main form of energy that results when the book strikes the floor?

Accepted Answer

sound energy

Answer

heat energy

Answer

light energy

Answer

chemical energy

Question 24

The pictures below show a boy and a girl playing musical instruments. The boy's guitar makes a higher sound than the girl's drum. Which reason BEST describes why this might happen?

Accepted Answer

The guitar's parts vibrate more quickly than the drum's parts.

Answer

The drum has a higher pitch than the guitar.

Answer

The drum makes a louder sound that the guitar.

Answer

The guitar's parts vibrate, but the drums parts do not.

Question 25

Shreya is using a piece of equipment that she built. The picture below shows the position of the spring and the ball. If Shreya squeezes the spring to half its length in the picture, what effect will that have on the ball?

Accepted Answer

The ball's potential energy will increase.

Answer

The ball will create more energy.

Answer

The ball's kinetic energy will decrease.

Answer

The ball's potential energy will decrease.

Question 26

The energy of flowing water can be converted into other forms of energy. Which form of energy does flowing water possess that can be converted into other forms of energy.

Accepted Answer

kinetic energy

Answer

electrical energy

Answer

gravitational energy

Answer

wind energy

Question 27

What is absorbed by a red shirt?

Accepted Answer

red light

Answer

all colors of light except a red light

Answer

all light

Answer

white light

Question 28

Who is the scientist that developed the 3 laws of motion?

Accepted Answer

Sir Isaac Newton

Answer

Alexander Graham Bell

Answer

Benjamin Franklin

Answer

Sir Smith Scott

Question 29

Simple machines only have 1 or 2 main parts and make work easier. Which of the following is NOT an example of a simple machine?

Accepted Answer

bicycle

Answer

seesaw

Answer

ax

Answer

ramp

Question 30

In a lever, the fixed point that the bar balances on is called the...

Accepted Answer

fulcrum

Answer

effort force

Answer

machine

Answer

resulting force

Unit 8 Energy Test Review

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