P3


HideShow resource information
What do all objects fall with? Why?
The same acceleration due to gravity
1 of 8
What does the size of the air resistance force on a falling object depend upon? (2 things)
1-Its cross sectional area- the larger the area the greater the air resistance, 2- its speed- the faster it falls the greater the air resistance
2 of 8
When does air resistance have a significant effect on motion?
When it is large compared to the weight of the falling object
3 of 8
What is the force on each kilogram of mass due to gravity?
g=10 N/kg
4 of 8
What are three features of the gravitational field strength?
1- It's unaffected by atmospheric conditions, 2- varies with position on the Earth's surface, 3- Varies with height above or depth below Earth's surface
5 of 8
What is the formula for gravitational potential energy?
GPE=mgh (m=mass, h=vertical height moved and g=gravitational field strength)
6 of 8
What happens when skydivers reach terminal speed?
Their kinetic energy has a maximum value and remains constant
7 of 8
When terminal speed is reached what can it be shown as?
change in GPE= work done against friction
8 of 8

Other cards in this set

Card 2

Front

What does the size of the air resistance force on a falling object depend upon? (2 things)

Back

1-Its cross sectional area- the larger the area the greater the air resistance, 2- its speed- the faster it falls the greater the air resistance

Card 3

Front

When does air resistance have a significant effect on motion?

Back

Preview of the front of card 3

Card 4

Front

What is the force on each kilogram of mass due to gravity?

Back

Preview of the front of card 4

Card 5

Front

What are three features of the gravitational field strength?

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Physics resources:

See all Physics resources »See all Falling safely resources »