Vocab - Physics 1 Intro

Which of these questions might be answered by physicist (a scientist who specializes in physics)?

• How do butterflies reproduce?

• What elements are combined to make sugar?

• How old are the rocks near Dallas?

• How much energy does the Sun produce?

Which of these questions could be answered by studying mechanics?

• How do light bulbs work?

• How much force is needed to move a large rock?

• How old are dinosaur fossils?

• What will happen if you mix vinegar and baking soda?

Which of these topics might be studied by a scientist?

• The history of England.

• Where do diseases like COVID-19 come from?

• Who really wrote Shakespeare's plays?

• What will happen to our economy in the next year?

When you measure something you describe it using a ___________ and a _____________.

• a number, and a second number

• an adjective (like big, small, huge) and a number.

• number and units of measure

• word, exclamation point

Standard units of measure are _______________.

• Basic measurements that we all agree to use for comparison.

• Always the same in every country.

• Made up new for every situation.

Which of these would be very difficult to measure?

• The length of your foot.

• Your pulse rate.

• The mass of the Earth.

• The energy of a sneeze.

• How much your parents love you.

How difficult was this quiz?

• Very difficult

• A little bit difficult

• Mostly easy

• Very easy

If no external forces act on a moving object, it will:

• continue moving at the same speed and in the same direction

• move slower and slower until it finally stops, because it's natural to not move.

• come to an abrupt halt because there is no force to keep it moving.

• continue moving, but it could change direction because there is no force to keep it on course.

An object must be in motion when:

• its location is not known.

• its location is changing

• its location is not changing

• any force is acting on the object

Check the box next to all the correct statements about force.

(there is more than one correct statement!)

• force is a vector

• force is any push or pull

• the units for force are kilograms

• force and inertia are the same thing

• the direction of a force is important