Force, Gravity and Friction Review

T/F: Sliding friction keeps you in the seat when a car goes around a corner.

• True
• False

An arrow can be used to represent a force. The length of the arrow represents ____________.

• direction of the force
• strength of the force
• mass of the force
• acceleration of the force

T/F: Friction is a force that speeds up motion between 2 surfaces that are in contact.

• True
• False

The force you to have to overcome to start an object moving is __________.

• rolling friction
• static friction
• sliding friction
• air resistance

T/F: Fluid friction between an object and air is called air resistance.

• True
• False

The force that opposes motion is ________.

• a balanced force
• an unbalanced force
• an accelerating force
• friction

The upward force on an object falling through the air is ______.

• air resistance
• inertia
• gravity
• terminal velocity

The unit of force is ______.*

• grams
• liters
• newtons
• kilograms

Gravitational force exerted on an object

• mass
• weight
• gravity
• force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A push or a pull on an object by another object touching it

• force
• contact force
• noncontact force
• gravity