Physical Science

You want to concentrate light coming from a weak light source by focusing on a single point. Would you use a converging or diverging lens to do this?

What does the eye do to change it focus?

If you shine red light on a yellow shirt, what color will the shirt appear? Assume the shirt color is done with dyes that use the subtractive primary colors.

Tags

NGSS.MS-PS4-2

What is Acceleration?

• 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-PS2-2

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

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.

Tags

NGSS.MS-PS2-5

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.

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