Science Test

Question 1

The average kinetic energy of the molecules in a substance refers to its

Answer 1

temperature

Question 2

Calories are units that express the measurement of?

Answer 2

heat

Question 3

When molecules in a substance vibrate faster and faster it?

Answer 3

gets warmer

Question 4

How will the rising of a hot air balloon and cold air be different than if it rises in warm air?

Answer 4

it will rise faster in cold air

Question 5

What happens when an ice cube melts in a glass of water?

Answer 5

heat transfers from the water to the ice

Question 6

What point does water boil?

Answer 6

212 degrees fahrenheit

Question 7

Which statement is true about a small glass and a large glass filled with water at the same temperature?

Answer 7

the large glass has more heat

Question 8

Water freezes at what temperature on the celsius scale?

Answer 8

zero

Question 9

Which of the following is an example in which kinetic energy is converted to potential energy

Answer 9

A spring is stretched

Question 10

As you get to the the top of a roller coaster what change is taken place?

Answer 10

kinetic to potential energy

Question 11

Friction converts the energy of motion to what energy

Answer 11

heat energy

Question 12

friction is a

Answer 12

force

Question 13

Friction is caused by the ________ of objects

Answer 13

resistance

Question 14

Which type of friction acts on a parachute as it falls to the ground?

Answer 14

fluid

Question 15

Viscosity is a the characteristic of a fluid that resists

Answer 15

flowing

Question 16

The force that once surface exert on another when the two rub against each other is called

Answer 16

friction

Question 17

When an object rolls over a surface what type of force is action on it

Answer 17

rolling friction

Question 18

What’s the correct formula for weight

Answer 18

weight equals mass times gravity

Question 19

Gravity is force that determines the

Answer 19

the weight of matter

Question 20

Identify the object that has the greatest gravitational pull

Answer 20

the sun

Question 21

Where would you find the least gravitational pull

Answer 21

on the moon

Question 22

The gravitational attraction between two objects depends on the distance between the objects and their

Answer 22

masses

Question 23

If an object is moving in constant speed and force pushes it will

Answer 23

accelerate

Question 24

If a force with 10 newtons is acting on an object an additional 6 newton in the same direction is

Answer 24

16 newtons