"Outrageous Acts of Science: How Not To"- Discovery Education

What is Newton's Third Law of Motion?

• For every action, there is an equal and opposite reaction.

• An object in motion stays in motion unless acted upon by an external force.

• Force equals mass times acceleration.

• Energy cannot be created or destroyed.

Tags

NGSS.MS-PS2-1

Which of the following best describes the relationship between force, mass, and acceleration?

• Force is the product of mass and acceleration.

• Force is the sum of mass and acceleration.

• Force is the difference between mass and acceleration.

• Force is the ratio of mass to acceleration.

Tags

NGSS.MS-PS2-2

Which factor does NOT affect the strength of electric forces between two objects?

• The distance between the objects.

• The charge of the objects.

• The color of the objects.

• The medium between the objects.

Tags

NGSS.MS-PS2-3

What is the primary factor that gravitational interactions depend on?

• The distance between objects.

• The masses of the interacting objects.

• The speed of the objects.

• The color of the objects.

Tags

NGSS.MS-PS2-4

Which of the following is evidence that fields exist between objects exerting forces on each other?

• Objects can exert forces without touching.

• Objects change color when near each other.

• Objects make noise when they collide.

• Objects increase in temperature when close.

Tags

NGSS.MS-PS2-5

Design a simple experiment to demonstrate Newton's Third Law using two colliding objects.

• Use two identical balls and observe their motion after collision.

• Use a single ball and observe its motion on a slope.

• Use a pendulum and observe its swing.

• Use a spring and measure its compression.

Tags

NGSS.MS-PS2-1

Plan an investigation to show how the sum of forces affects an object's motion.

• Use a cart on a track and apply different forces to it.

• Use a pendulum and measure its period.

• Use a thermometer to measure temperature changes.

• Use a magnet to attract metal objects.

Tags

NGSS.MS-PS2-2

How can you determine the factors affecting the strength of magnetic forces?

• By changing the distance between magnets and measuring the force.

• By changing the color of the magnets.

• By changing the shape of the magnets.

• By changing the temperature of the magnets.

Tags

NGSS.MS-PS2-3

Construct an argument to support the claim that gravitational interactions are attractive.

• Gravitational forces always pull objects towards each other.

• Gravitational forces push objects away from each other.

• Gravitational forces have no effect on objects.

• Gravitational forces only affect objects in space.

Tags

NGSS.MS-PS2-4

Evaluate an experimental design to show that fields exist between objects exerting forces on each other.

• Use a magnet and iron filings to visualize magnetic fields.

• Use a thermometer to measure temperature changes.

• Use a stopwatch to measure time intervals.

• Use a ruler to measure lengths.

Tags

NGSS.MS-PS2-5