Force

According to Newton's laws, for any object, the greater the force that's applied to it, the greater its _________ will be.

• Acceleration

• inertia

• gravity

• size

Tags

NGSS.MS-PS2-2

An astronaut is planning a trip to a newly-discovered planet. According to the Law of Universal Gravitation, the astronaut's weight on the new planet will be greater than his weight on Earth if:

• the new planet has less gravity than Earth.

• the new plant has the same gravity as Earth.

• the new planet has more gravity than Earth.

• the gravity on the planet doesn't matter. Weight is the same everywhere in the universe.

If the same force is applied to each ball, which one will have the LEAST acceleration?

• 
• 
• 
• 

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Which of the following is measured in Newtons?

• weight

• momentum

• mass

• acceleration

Tags

NGSS.MS-PS2-4

A firefighter feels the hose pushing backwards onto him as he uses it to put out a fire.

What is the most likely cause of this?

• The hose material is very elastic.

• Since the hose is at rest, it tends to stay at rest.

• The force exerted on the water equals the mass of the water times its acceleration.

• The escaping water exerts an equal and opposite fore on the hose.

Tags

NGSS.MS-PS2-1

The size of the gravitational force between two objects depends on their_______.

• frictional forces

• inertia

• masses and the distance between them

• speed and direction

Tags

NGSS.MS-PS2-4

A 500 N force is applied to a 25 m/s² object. The mass of the object is ____.

• 12,500 m/s

• 12, 500 kg

• 20 m/s

• 20 kg

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

The _____ of an object does not change, but its _____ can, based on its location.

• mass, volume

• mass, weight

• weight, mass

• weight, volume

As the mass of an object increases, its inertia will ___________.

• decrease

• increase

• stay the same

• be unable to determine

A student drops a feather and rock at the same time form Mrs. Dobbs's window. If air resistance wasn't a factor, what should she observe?

• The rock falls slower than the feather.

• The rock falls faster than the feather.

• The rock and feather fall at the same rate.

• The rock and feather remain suspended and do not fall.

Tags

NGSS.MS-PS2-4