Forces and Laws of Motion Test

The upward force exerted on an object falling through air is

• weightless.
• terminal velocity.
• momentum.
• air resistance.

The statement "to every reaction there is an equal and opposite reaction" is 

• Newton's 1st Law.
• Newton's 2nd Law.
• Newton's 3rd Law.
• Law of conservation of momentum.

Tags

NGSS.MS-PS2-1

An object that is in free fall seems to be

• not moving.
• weightless.
• speeded up by air resistance.
• slowed by air resistance.

The relationship among mass, force, and acceleration is explained by

• the conservation of momentum.
• Newton's 1st Law.
• Newton's 2nd Law.
• Newton's 3rd Law.

Tags

NGSS.MS-PS2-2

A feather will fall through the air more slowly than a brick because of

• momentum.

• gravity.

• air resistance.

• terminal velocity.

The amount of gravitational force between objects depends on their

• masses and the distances between them.
• frictional forces.
• speed and direction.
• inertia.

Tags

NGSS.MS-PS2-4

When a force is exerted on an object, an equal and opposite force is exerted by the object.  These forces are referred to as 

• action-reaction forces.
• centripetal force.
• friction forces.
• gravitational forces.

Tags

NGSS.MS-PS2-1

Acceleration due to gravity is 

• 0.98 m/s.
• 98 m/s².
• 9.8 m/s².
• 9.8 m/s.

Tags

NGSS.MS-PS2-4

A real car moving at 10 km/h has more momentum than a toy car moving at the same rate because 

• of friction.
• its mass is greater.
• its mass is less.
• it moves faster.

According to Newton's second law of motion,

• F=pa.
• F=mv.
• F=ma.
• F=pv.

Tags

NGSS.HS-PS2-1