Circles

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Is this an element, compound or mixture?

(Each color circle is a different atom and touching circles are molecules.)

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Find the circumference of a circle with a radius of 12.5 mm .

• 37.68mm

• 18.84mm

• 78.5mm

• none of the above

what is the circumference of this circle ?

• 3.14 cm 

• 37.68 cm

• 24 cm

• 68.4 cm

What is the circumference of a circle with a radius of 27 yards?

• 169.56 yards

• 179.56 yards

• 189.56 yards

• 159.56 yards

A person has completed a round of a circular path. What is the total distance & displacement travelled by the person.

• Distance = circumference of a circle; Displacement = radius of a circle.

• Distance = circumference of a circle; Displacement = diameter of a circle.

• Distance = diameter of a circle; Displacement = 0

• Distance = circumference of a circle; Displacement = 0

The number pi is approximately equal to _________. 

• 3.14

• 3

• whatever the diameter equals 

The linear speed of a rolling wheel depends on what?

• the mass of the object

• the force of gravity

• the surface friction

• the circumference

Tags

NGSS.MS-PS3-1