Bill Nye the Science Guy Motion: Quiz

What causes motion?

• forces (any push/pull)

• Who know's?

• friction

• inertia

Answer explanation

Forces act on an object to cause motion.

inertia is...

• A force that keeps a body at rest or in uniform motion in a straight line
• A type of energy
• A type of matter
• MAGIC!!!

Answer explanation

Inertia is the reason why things (in a vaccum) stay still when still or keep moving when they're moving.

When something is sitting still, it stays sitting still unless...

• it is acted on by an outside force

• you tell it to

• atoms inside collide with each other causing the nuclei to split

• it is ignored

Answer explanation

Newton's first law

When the broom moves across the floor YOU KNOW this is an example of which type of friction?

• Static friction
• Sliding friction
• Rolling friction
• Fluid friction

Answer explanation

The broom quite literally is sliding when causing friction.

Why did Bill have to give the anvil such a big push to get it moving? 

• Because Bill is weak

• Because of the force of gravity

• Because the anvil was very heavy
• Because Bill wanted to show off his strength

Answer explanation

Since the mass of the anvil was so much it had a lot of inertia.

Check all of the following that are forces (more than one)

• air resistance

• gravity

• tension (of the rope)

• Bill's muscles

Answer explanation

Force -in simple terms- is a push/pull motion.

Things have inertia when they are sitting still AND when they are moving

• True

• False

Answer explanation

Inertia is a quality of matter which says that things in motion will want to stay in motion, and things not in motion will stay at rest (in a perfect vaccum).

An object in motion stays in motion and an object at rest stays at rest is a example of which law?

• Newton's First Law of Motion

• Newton's Second Law of Motion

• Newton's Third Law of Motion

• Newton's Fourth Law of Motion

• Einstein's Theories of General and Special Relativity

Answer explanation

The correct answer is Newton's First Law of Motion. This law, also known as the Law of Inertia, states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an external force.

What is Newton's second law of motion in simple terms?

• An object at rest tends to stay at rest

• Force equals mass times acceleration (to move a mass you need a force)

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

• The total momentum of an isolated system remains constant

Answer explanation

Newton's second law of motion, in simple terms, states that the force exerted on an object is equal to the mass of the object multiplied by its acceleration.

As the boxes sat there, YOU KNOW that the force keeping the boxes from falling through the floor is called...

• Gravity

• Friction

• Normal Force

• Inertia

Answer explanation

The question asks about the force that keeps the boxes from falling through the floor. This is not gravity, as gravity pulls objects downwards. Friction and inertia are unrelated to this scenario. The correct answer is the 'Normal Force,' which is the force exerted by a surface that supports the weight of an object resting on it. This force acts perpendicular to the surface and prevents objects from falling through it.