Unit 7 Test Corrections - Motion and Energy

The tendency of an object to resist change in motion

Tags

NGSS.HS-PS2-1

Change in position of an object; vector quantity

Measurement with magnitude and direction

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Size of a measurement (how large or small)

Measurements with magnitude only

Which two of the following are necessary for determining the velocity of an object?

• Direction

• Inertia

• Mass

• Momentum

• Speed

Tags

NGSS.MS-PS3-1

The unit of force (Newton) is equal to:

• the amount of mass in an object

• mass × velocity

• $kg\ \times\ \frac{m}{s^2}$

• $kg\ \times\ \frac{m}{s}$

Which of the following are needed to calculate acceleration according to Newton's second law?

SELECT ALL THAT APPLY!

• Distance

• Force

• Velocity

• Mass

Tags

NGSS.MS-PS2-2

Calculate the amount of force needed to move 50 kg object with an acceleration of 15 m/s2. 

INCLUDE UNITS IN YOUR ANSWER!

Tags

NGSS.MS-PS2-2

A teacher rubbed a match against a piece of sandpaper. The match started to burn. Which statement best describes the energy changes that occurred?

• The chemical energy stored in the match changed to thermal energy and light energy.

• The thermal energy stored in the match changed to light energy and chemical energy.

• The light energy and thermal energy stored in the match changed to mechanical energy.

• The light energy and thermal energy stored in the match changed to chemical energy.

Tags

NGSS.MS-PS3-5