Cambridge Science Checkpoint 8+9 Test

What two types of measurements make up DENSITY? 

• Mass and Volume

• Temperature and Mass

• Grams and Centimeters

• Volume and Weight

What makes objects visible ?

• the absorption of light by objects

• the reflected light from the object

• the total internal reflection taking place in an object

Tags

NGSS.MS-PS4-2

Which graph represents the journey of a car moving at a steady speed?

• 
• 
• 

Explain what is happening in the diagram

Answer explanation

Magnetic with unlike poles attract each other

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Total distance divided by total time is

Answer explanation

average speed

Tags

NGSS.MS-PS3-1

Which of the following is a unit of speed

• m/s

• km

• sec

• Hz

Tags

NGSS.MS-PS3-1

A person walked 10 km.  It took them 2 hours.  How fast were they walking?

• 8km/h

• 5km/h

• 2km/h

• 10km/h

Mark the amplitude of the wave

Tags

NGSS.MS-PS4-1

What is the correct equation for calculating a perpendicular distance? 

• perpendicular distance = force x moment 

• perpendicular distance = force / moment 

• perpendicular distance = moment / force

Define moment of force

Answer explanation

Moment is a quantity that tells turning effect of a force about turning point.