Because of Kinetic Energy or Gravitational Potential Energy

Which is harder?

Walking UP 5 flights of stairs

or

Walking DOWN 5 flights of stairs

Tags

NGSS.MS-PS2-4

Why is it harder to climb up five flights of stairs than it is to climb down five flights of

stairs?

Tags

NGSS.MS-PS2-4

NGSS.MS-PS3-5

Which is worse?

Dropping a BOWLING BALL on your foot

or

Dropping a TENNIS BALL on your foot

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Why is it worse to drop a bowling ball, rather than a tennis ball, on your foot?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which is more difficult?

Putting a heavy book on the TOP SHELF of a book shelf

or

Putting a heavy book on BOTTOM SHELF of a book shelf

Why is it harder to put a heavy book on the top shelf of a bookshelf than on the

bottom shelf?

Tags

NGSS.MS-PS2-4

Which is easier to catch?

A ball moving QUICKLY towards you

or

A ball moving SLOWLY towards you

Tags

NGSS.MS-PS3-1

Why is a ball harder to catch when it is moving toward you faster?

Tags

NGSS.MS-PS2-2

Which would make a bigger splash in a pool?

An ADULT jumping into the pool

or

A SMALL CHILD jumping into the pool

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Why do adults make bigger splashes when they jump into swimming pools than

small children?

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5