Forces and Motion EOG

Which will most likely stop an object in motion?

• force

• mass

• accleration

• speed

Tags

NGSS.MS-PS2-2

A student throws 4 items with the same amount of force. A paper clip (0.5 grams) a marble (1 gram), an eraser (1.5 grams) and a marker (2 grams). Which object will go the fastest when thrown?

• paper clip

• marble

• eraser

• marker

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

Macie’s job at the bookstore requires her to move several heavy boxes of books. How can Macie use the least amount of force to move the boxes?

• by packing the books in smaller boxes

• by packing the books in larger boxes

• by stacking the boxes and pulling them out of the storage room

• by stacking the boxes and pushing them out of the storage room

Tags

NGSS.MS-PS2-2

Four cubes made of different materials are moving down a plastic slide. Which cube would experience the greatest amount of friction?

• the cube made of sandpaper

• the cube made of ice

• the cube made of smooth plastic

• the cube made of polished stone

A force that opposes the motion of an object is called (a)   .

• friction

• gravity

• heat

Answer explanation

A force that opposes the motion of an object is called friction. It acts in the opposite direction to the movement, slowing down or stopping the object. Gravity pulls objects down, while heat is not a force.

Tags

NGSS.3-PS2-1

A box is moving toward the right. Two forces act on the box: a force pushing the box to the right and a friction force. The two forces acting on the box are shown in the four force diagrams. Identify whether the speed of the box in each diagram will decrease, increase or remain constant.

b

Speed remains constant

Speed increases

Speed decreases

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A box is moving toward the right. Two forces act on the box: a force pushing the box to the right and a friction force. The two forces acting on the box are shown in the four force diagrams. Identify whether the speed of the box in each diagram will decrease, increase or remain constant.

c

Speed decreases

Speed increases

Speed remains constant

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A student wants to determine the amount of force needed to move a 100 gram block across 4 surfaces: a rug, glass, grass and concrete. Choose the best answer for Part A and Part B.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Match the following

• The force that attracts

  two objects with mass

  toward each other.

• Weight

• A push or pull required to

  move an object

• Mass

• A measure of the gravitational force between objects

• Gravity

• The amount of matter contained in an object or substance

• Force

• An opposing force against objects moving through the air

• Air Resistance

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A student is investigating the number of times 4 different balls bounce when dropped on the gym floor. The data table is shown. Choose the correct classification for each variable as independent, dependent, or constant.

Drop height - ​ (a)  

Ball - ​ (b)  

Surface - ​ (c)  

Bounces - ​ (d)  

• constant

• independent

• dependent