What is the term for the ability to cause change in matter? A. Energy
B. Temperature
C. Acceleration
D. Force

A. Energy

Explanation:

You can change energy from one form to another when you lift your arm or take a step. Energy is used to move matter. In this scenario, the matter would be you.

6 cm

Explanation:

The lens equation is :

where is the focal length, is the distance of the object and is the distance of the image.

To find the height of the image we first need to find the distance of the image , so we clear for it in the last equation:

and since and

so

Now to find the height of the image we use the magnification:

where is the image height, and is the object height:

clearing fot :

substituting known values:

The image height is 6cm.