8.6c

A spring scale is used to pull each of the four objects. Based on the information provided, which object experiences the greatest acceleration when pulled with 8 N of force? (8.6A)

• Object R

• Object S

• Object T

• Object U

Tags

NGSS.MS-PS2-2

Two forces are applied to a 17 kg box as shown. The box is on a smooth surface. Which statement best describes the net force and direction the box will move? (8.6)

• 7 N to the right

• 7 N to the left

• 53 N to the right

• 70 N to the right

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The tightness across the surface of water that enables paper clips to float is ____________.

• adhesion

• capillary action

• surface tension

• polarity

A water strider can skate along the top of a pond because:

• covalent bonds result in water adhesion (surface tension)

• cohesion allows strong hydrogen bonds in water to form below the surface (surface tension)

• water striders have adapted to take advantage of water cohesion

• water striders are afraid of water and avoid it

Tags

NGSS.MS-PS2-5

The effect where the top of a liquid is strong and seems to stick together.

• density

• surface tension

• adhesion

• cohesion

The property of water that allows it to stick to something else.

• density

• surface tension

• adhesion

• cohesion

Water droplets on a spider web are an example of....

• density

• surface tension

• adhesion

• cohesion

Water sticks to itself.

• density

• surface tension

• adhesion

• cohesion

Water droplets joining together to make one large water droplet.

• density

• surface tension

• adhesion

• cohesion

A water strider (bug) going across the water is an example of

• surface tension

• cohesion

• adhesion

• lesions