Final Exam Review

Physics 1

100

25 N to the right and 20 N to the right = 

45 N to the right 

200

____________ is a force of attraction between objects that is due to their masses. 

Gravity 

300

___ is the unit for force? 

Newton 

400

_____ is a measure of the gravitational force on an object. 

Weight 

500

A kangaroo hops 60 m to the east in 5 s.

What is the kangaroo's average velocity?

12 m/s East 

S= 60m/5s= 12 m/s East 

Physics 2

100

A golf ball will remain at rest on a tee until it is acted on by the unbalanced force of a moving golf club.
Which one of Newton's Laws of motion explains this? 

Newton's 1st Law of Motion 

200

What is Newton's 2nd law of motion equation? 

Force = Mass * Acceleration 

or a=f/m

300

The action force is the swimmer's hands pushing on the water and the reaction force is the water pushing on the hands. The reaction force moves the swimmer forward.

Which law of motion is this an example of? 

Newton's 3rd Law of Motion 

400

What force is necessary to accelerate a 70 kg object at a rate of 4.2m/s2?

F= 70kg * 4.2m/s2= 294N

500

Solve for acceleration: _________________

Initial velocity: 0m/s

Final velocity 35 m/s

Time 5 s

35-0 / 5 = 7m/s2        (A= vf-vi/t)

Chemistry 1

100

Mass/ Volume = 

Density 

200

Which is more dense a nail or a ping pong ball?

Nail 

300

A crushed soda can is an example of a _____ change. 

Physical 

400

Baking a cake is an example of a ____ change. 

Chemical 

500

A ______________ mixture has the same uniform appearance throughout.

Homogeneous 

Chemistry 2

100

What are the 3 states of matter? 

Solid, Liquid, and, Gas 

200

Many balloons can be filled form one tank of ____ because the particles of _____ gas in a balloon are far apart. 

Helium 

300

A fountain soda fresh from Circle K with CO2 bubbles would be a ___________________ mixture, while a flat soda without CO2 bubbles would be a _________________________ mixture. 

Heterogeneous

Homogeneous 

400

Silver is classified as a(n)?

Element 

500

The halogens are located in group ____?

17

Random

100

The largest group on the periodic table is sometimes called “group B elements.” They are also called the___?

Transition Metals 

200

Elements 57 – 71, the extended row at the bottom of the periodic table, are called?

Lanthanides

300

What substance forms when two elements chemically combine?

Compound 

400

Water has a pH around 7. Water is considered?

Neutral 

500

When you mix vinegar with baking soda what will happen? 

Vinegar = Acid 

Baking Soda = Base

 Chemical Reaction will occur and the substance will neutralize