Physical Ch 12

If you divide momentum by velocity, the result is the value of the object's

• mass

• energy

• direction

• speed

Tags

NGSS.HS-PS2-2

A 10.0 kg dog chasing a rabbit north at 6.0 m/s has a momentum of

• 0.6 kg m/s

• 60.0 m/s

• 60.0 kg • m/s north

• 60.0 kg/s

When the velocity of an object changes, it is acted upon by a(n)

• force

• momentum

• inertia

• deceleration

Tags

NGSS.MS-PS2-2

If the net force on an object is zero, then the object has

• reaction forces

• balanced forces

• action forces

• unbalanced forces

When objects are moved further apart from each other, the force of gravity between them

• increases

• decreases

• stays the same

• decreases at first then increases

The SI unit of force, named after the scientist who described the relationship between motion and force, is called the

• newton

• curie

• einstein

• pasteur

When air resistance balances the weight of a falling object, the velocity

• slowly decreases

• rapidly increases

• remains constant

• None of the above

The weight of an object can be calculated by multiplying mass by

• distance

• velocity

• speed

• free-fall acceleration

Tags

NGSS.MS-PS2-4

Which object does not have momentum?

• a fish swimming in a pond

• a rock by the side of the road

• a feather falling to the ground

• a boulder rolling down a hill

Tags

NGSS.HS-PS2-2

What is the reaction force when you place a cup on a table?

• the force of the cup on the table

• the force of the table on the cup

• the force of gravity on the table

• the force of gravity on the cup

Tags

NGSS.MS-PS2-1