Chapt 3 Lesson 1: Forces ---IPC

An attractive force between any two objects that depends on the masses of the objects and the distance between them.

• gravity

• force

• friction

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

Match the following

• field

• Forces that are equal in size and opposite in direction

• unbalanced forces

• different between two forces because they are in opposite directions and the net force value is not 0

• balanced forces

• region of space that has a physical quantity at every point

• microwelds

• Where welding or sticking occurs from bumps on surfaces touching

• force

• A push or pull

Match the following

• gravity

• Rougher surfaces

• force

• Can cause the motion of an object to change

• G

• The force due to gravity

• weight

• Universal gravitational constant

• = more friction and more microwelds

• attractive force between any two objects but it depends on the mass and distance between each object

Tags

NGSS.MS-PS2-4

The sum of all forces acting on an object is called the

• net force

• gravitational pull

• static friction

• gravitational change

Tags

NGSS.MS-PS2-2

To move one surface over the other a force must be applied to break the microwelds. This is an explanation of

• static friction

• friction

• gravitational change

A force that opposes the sliding motion of two surfaces that are touching each other is called

• balanced forces

• changing motion

• friction

• force

How does gravity change as you move away from the earth?

• The gravity will cause a change in direction of the object due to the gravitational pull of the Earth

• Earth's gravitational pull increases as the objects move further away from each other in order for it to continue to impact the object

• Earth's gravitational pull becomes weaker as you move away from Earth

  (as the distance is increased between the two objects the gravity force gets weaker)

A force that limits the motion of an object such as a wheel or ball rolling over a surface

• rolling friction

• sliding friction

• static friction

Match the following

• Sliding friction

• The friction exerted on an object at rest. Prevents two surfaces from sliding past each other

• Fundamental Forces

• One of four basic forces

• Long-range force

• The friction exerted when two objects slide past each other

• Static Friction

• Gravitational pull is never 0

• gravity

• 4 basic forces

Tags

NGSS.MS-PS2-4

What two things can cause the gravitational force between objects to INCREASE?

• The gravitational force exerted on an object is going to increase the gravitational force if the weight increases

• If the mass of either object increases, the gravitational force between them increases

• If the region of space around the two objects has a physical quantity at every point the gravitational force between them will increase

• If the objects are closer together, the gravitational force between them increases

Tags

NGSS.MS-PS2-4