Motions, Forces, and Newton's Laws

The __ can change when describing motion. It is just the chosen starting point.

• displacement

• distance

• reference point

• speed

One day you discover a shortcut to school. You have just shortened your ___.

• displacement

• distance

• reference point

• speed

The unit for force is ___.

• kilograms

• seconds

• newtons

• joules

What happens when two forces act in the same direction?

• They cancel each other out.

• The stronger one prevails.

• Their strengths are added.

• Their sum divided by two is the total force.

Tags

NGSS.MS-PS2-2

The greater the mass of an object,

• the easier the object starts moving. 

• the greater its inertia.

• the more balanced it is.

• the more space it takes up.

Tags

NGSS.MS-PS2-2

Friction acts in a direction ___ the applied force.

• opposite to

• the sane as

• away from

• straight up from

Which of the following is affected by gravity?

• distance

• mass

• speed

• weight

If the mass of one of two spheres increases, how does it affect the gravity between the two spheres?

• the gravity increases

• the gravity decreases

• the gravity fluctuates

• the gravity is not affected

Tags

NGSS.MS-PS2-4

Travis is pushing his sister Claire on a swing. Travis is pushing with 35 N to the right. Claire pushes back with 42 N to the left. What is the net force and in what direction?

• 7 N, to the right

• 7 N, to the left

• 77 N, to the right

• 77 N, to the left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

An airplane is flying in a strong wind. The airplane is exerting 85 N to the East. The wind is blowing 100 N to the West. What is the net force?

• 185 N, to the east

• 185 N, to the west

• 15 N, to the east

• 15 N, to the west

Tags

NGSS.MS-PS2-2