Force Gravity Mass Weight Matter Grams What unit

Force

Gravity

Mass

Weight

Matter

Grams

What unit is mass measured in?

What are 3 states of matter?

Force

force: a push or pull on an object.

Force Contact Noncontact

Force Contact Noncontact

contact force: push or pull applied by touch.

Earthquakes

Force Contact Noncontact

noncontact force: pushes or pulls without touching it.

What are the 2 different types of forces?

If I am opening my fridge, what type of force am I applying? • Contact • Noncontact

If I am opening my fridge, what type of force am I applying? • Contact • Noncontact

If my pencil falls to the ground, what type of force is being applied? • Contact • Noncontact

If my pencil falls to the ground, what type of force is being applied? • Contact • Noncontact

Gravity

gravity: a non-contact force that occurs between all objects that have mass

gravity: a non-contact force that occurs between all objects that have mass

Mass

mass: amount of matter in an object

Weight

weight: is the gravitational force exerted on an object.

Scales measure weight.

You weigh 10% less orbiting the earth

100 lbs 90 lbs

Your mass does not change.

Weight is relative

mass ≠ weight

Gravity is an attractive force between objects that have ______. • Volume • Mass • Distance

Gravity is an attractive force between objects that have ______. • Volume • Mass • Distance

Gravity is an example of a ____ force. • Contact • Noncontact

Gravity is an example of a ____ force. • Contact • Noncontact

True or False: Weight changes based on the gravitational force

True

Are mass and weight the same thing? • Yes • No

Are mass and weight the same thing? • Yes • No

What are the 2 different types of forces?

What is an attractive force between objects that have mass?

Remember!!!

force: a push or pull on an object.

gravity: a non-contact force that occurs between all objects that have mass

mass: amount of matter in an object

weight: is the gravitational force exerted on an object.

This Video Created With Resources From: Cooperative Agreement # R 324 B 130023 Curry School Foundation’s Research and Development Fund Questions or Comments to Michael Kennedy, Ph. D. MKennedy@Virginia. edu