What is mass? 22-25.................................

Physics
Tutor: None Selected Time limit: 1 Day

25. What is mass?

 

a. a force that resists motion

b. the amount of matter in an object

c. another word for matter

d. the amount of space that an object fills

24. A cow's mass is 410 kg and a car's mass is 565 kg. What is the difference between their weights?

23. What is weight?

22. A worker with spikes on his shoes applies a constant horizontal force of 20 N to push a 40-kg box across a frictionless, frozen lake. What is the acceleration of the box?


May 18th, 2015

25. the amount of matter in an object

24. 155 N

23. Weight of a body = mass of the body * acceleration due to gravity

24.  F = ma 

so a = f/m = 20/40 = 0.5 m/s^2

Please let me know if you have any questions and best me if you are satisfactory.

May 18th, 2015

these are the answer choices for #23

a. Weight is a measure of the amount of space an object occupies.

b. Weight is a measure of the force on an object due to gravity.

c. Weight is a measure of the amount of matter in an object.

d. Weight is a measure of the amount of inertia an object has



May 18th, 2015

Weight is a measure of the force on an object due to gravity.

May 18th, 2015

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