Force and motion 11th grade

A force that opposes motion between two Surfaces that are touching.

• Friction
• Gravity
• Inertia

Force required to overcome inertia of a stationary object.

• Rolling Friction

• Sliding Friction

• Static Friction

Force required to keep an object sliding at a constant speed.

• Rolling Force

• Sliding Force

• Static Force

The force needed to overcome static friction is always greater than the force needed to overcome sliding or roiling friction because of what?

• Resistance

• Inertia

• acceleration

The force air exerts on a moving object.

• Gravity
• Friction
• Air Resistance

Terminal Velocity

• The highest speed an object can reach during free fall due to air resistance.

• The speed at which an object stops falling
• The speed at which an object starts falling

The amount of gravitational force between objects depends on what two things?

• Mass and Distance
• Shape and Temperature
• Weight and Height

The greater the mass the more gravity.

• True

• False

Greater the distance the more gravity

• True

• False

Gravity pulls objects towards earth with an acceleration of?

• 10 m/s^2
• 11 m/s^2
• 12 m/s^2