6th Grade PS Ch 6 Cont Question Preview (ID: 2940)

A moving object's ________________ depends on the object's mass and velocity.

a) momentum

b) inertia

the curved path traveled by a thrown baseball is known as

a) projectile motion

b) centripetal force

Which of the following is NOT an action/reaction force pair?

a) the force between a bat and ball

b) the attractive force between a falling ball and Earth

c) the force of propulsion and the force of gravity on an airplane

d) the force between a grasshopper and the ground

An ice skater with mass of 65 kg moved along the ice with a constant velocity of 2.0 m/s. what is the skater's momentum?

a) 130 kg*m/s

b) 32 kg*m/s

c) 130 N

d) 32 N

Why does a ball thrown horizontally follow a path that is curved downward:?

a) there is no acceleration on th ball

b) the ball is accelerated in the horizontal direction only

c) the ball is accelerated by gravity in the vertical direction only

d) the ball is accelerated in both the vertical and horizontal directions

For every action there is an equal and opposite reaction

a) Newton's 3rd Law of Motion

b) Newton's 1st Law of Motion

An objects force is equal to its mass times its velocity

a) Newton's 2nd Law of Motion

b) Newton's 1st Law of Motion

An object in motion with remain in motion or an object at rest will remain at rest until acted upon by an unbalanced force

a) Newton's 1st Law of Motion

b) Newton's 2nd Law of Motion

the tendency of all objects to resist any change in motion

a) inertia

b) gravity

The velocity of a falling object when the force of gravity is balanced by the force of air resistance

a) terminal velocity

b) free fall

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