Apologia Physical Science

What do chemists use to count atoms, ions or molecules?

• moles

• mice

• marks

• minutes

A chemical reaction that absorbs energy from its surroundings is called what?

• double replacement reaction

• combustion reaction

• endothermic reaction

• decomposition reaction

Tags

NGSS.MS-PS1-4

What is Reference point?

• A physical measurement that contains only magnitude (number) and does not contain directional information.

• The time rate of change of an objects velocity

• A point against which direction is measured.

• The distance an object travels plus the direction from the starting point

• A physical measurement that contains both magnitude (number) and directional information.

What is Displacement?

• A physical measurement that contains only magnitude (number) and does not contain directional information.

• The time rate of change of an object's velocity.

• A point against which direction is measured

• The distance an object travels plus the direction from the starting point

• A physical measurement that contains both magnitude (number) and directional information.

What is Vector quantity?

• A physical measurement that contains only magnitude (number) and does not contain directional information.

• The time rate of change of an object's velocity

• A point against which direction is measured

• The distance an object travels plus the direction from the starting point

• A physical measurement that contains both magnitude (number) and directional information.

What is Scalar quantity?

• A physical measurement that contains only magnitude (number) and does not contain directional information.

• The time rate of change of an object's velocity

• A point against which direction is measured

• The distance an object travels plus the direction from the starting point

• A physical measurement that contains both magnitude (number) and directional information.

Tags

NGSS.MS-PS3-1

If you are a passenger in the rear seat of a car moving at a steady speed, relative to whom are you at rest?

• a person on the side of the road

• the driver in the front seat

• a pedestrian on the corner

• a person in a passing car

Speed is defined as the ratio of the distance an object moves to what?

• the amount of time needed to travel the distance

• the direction the object moves

• the motion of the object

• the size of the object

Tags

NGSS.MS-PS3-1

What does the slope of a distance-time graph indicate?

• distance

• time

• speed

• displacement

What does a horizontal (flat) line on a distance-time graph mean?

• the object is moving at a constant speed

• the object is moving faster

• the object is slowing down

• the object is at rest