Motion and Forces

As mass of two objects increases, gravity...

• Decreases

• Increases

• Stays the same

Tags

NGSS.MS-PS2-4

Select which answers are examples of contact forces (select more than one)

• magnetism

• applied force

• friction

• gravity

What would be the acceleration of a projectile with a 30 kg mass being launched by piston force of 400 Newtons? (Acceleration = Force/Mass)

• 13.33

• 12,000 m/s²

• 12,000 meters

• 13.33 m/s²

Tags

NGSS.MS-PS2-2

What forces are acting on a bowling ball that is rolling down the lane?

• gravity and friction

• applied force, normal force, gravity, and friction

• gravity

• normal force and gravity

Tags

NGSS.MS-PS2-2

True or False: If an astronaut is on the moon, her mass stays the same.

• True

• False

What is the scientific unit for acceleration?

• meters per second

• Newtons

• meters per second squared

• meters

As distance between two objects increases, gravity...

• increases

• decreases

• stays the same

What is the scientific unit for force?

• meters per second

• meters per second squared

• Newton

• meters

A rocket launching into space is a good example of which of Newton's Laws?

• Law of Inertia

• Law of Acceleration

• Law of Action-Reaction

More force is required to push a full grocery cart through the store rather than an empty cart. Which of Newton's Laws explains this?

• Law of Inertia

• Law of Acceleration

• Law of Action-Reaction

Tags

NGSS.MS-PS2-2