Mass and Force

What is the force on a 1000 kg elevator that is falling freely at 9.8 m/sec²

• 102.04 n

• 9,800 n

• 980 n

• 103 n

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

NGSS.MS-PS2-4

You give a shopping cart a shove down the isle. The cart is full of groceries and has a mass of 18 kg. The cart accelerates at a rate of 3 m/s². How much force did you exert on the cart?

• 6N

• 54N

• 21N

• 18N

Tags

NGSS.MS-PS2-2

How much force is needed to accelerate a 25kg bowling ball at 2m/s². 

• 50N

• 5N

• 12.5N

• 100N

Tags

NGSS.MS-PS2-2

If a 2kg bird is pushed by the wind with a force of 2N, how fast does the bird accelerate?

• 1 m

• 2 m/s²

• 4m/s²

• 1 m/s²

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Use the data table to match the following.

• The girl

• As the mass increases

• Mass of 40 kg

• The one that requires the least amount of force to move.

• the amount of force needed increases

• The one that has the highest mass.

• The refrigerator

• A 100 kg requires _________ to move.

• 251 N

• The one that requires 101 N to move.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

How much force is needed to move a 40 kg girl?

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Students described the amount of force needed to change the motion for each ball from idle to rolling. Which statement is true?

• The bowling ball has less mass, but it took more force to make it roll.

• The bowling ball has more mass, therefore it took more force to make it roll.

• The beach ball has less mass, but it took more force to make it roll.

• The beach ball has more mass, therefore it took less force to make it roll.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

The experiment can be used to determine...

• how mass affects the force needed to move objects

• how force affects the mass of two objects

• how the force used to pull a dictionary affects the mass of a box of marbles

• how the mass of a box of marbles affects the mass of a dictionary

Tags

NGSS.MS-PS2-2

​ and Distance are factors that affect the force of gravity. The greater the masses, the ​ the gravitational force.

• Mass

• Stronger

• Weaker

Tags

NGSS.MS-PS2-4

The unit of mass is ​ (a)  

• kilogram

• Newton

• object

• mass

• force