Question

Air resistance is a form of friction that acts to slow down any object moving in the air

Answer 1

is it true or false?

Answer 2

Well what do you think? Think of what happens in real life to an object in the air.

Answer 3

I think its true.

Answer 4

But why do you think it's true?

Answer 5

I think its true because, just like a plane it can only go so fast in the sky.

Answer 6

Yep. And another easy example if something like a feather, or paper... why do they fall so slowly.

Answer 7

thanks sooooo much! you really helped me .

Answer 8

Which of the following changes when an unbalanced force acts on an object?


Select one:


a. inertia

b. weight

c. motion

d. mass

Answer 9

Again, which one do you think changes when a force acts on an object? eg pushing an object

Answer 10

mass

Answer 11

If you are in circular motion, your direction of motion is constantly changing. Therefore you are accelerating.


Select one:


True

False

Answer 12

How can mass change when a force acts on something? mass is a measure of how much matter is in something

Answer 13

weight? that's how much some one weigh

Answer 14

a. inertia

b. weight

c. motion

d. mass

only one of these changes when a force acts on it... think about what happens when you push on an object, or pull on an object, what happens to it?

Answer 15

The motion . because its moving?

Answer 16

Correct. It's mass, inertia and weight all won't change.

Answer 17

Which of the following descriptions of gravitational force is NOT true?


Select one:


a. it depends on the mass of the object

b. it is a replusive force

c. it exists between all objects

d. it depends on the distance between the objects

Answer 18

If you understand gravity, it should be easy to decide... one of those doesn't make sense.