Name: ______Due: Thurs., October 24, 2013 Parent Initial: ____
Matter & Forces Homework
**Please give complete answers including proof and justification (justify/ prove) your answer.
1. Which tools are needed to find how mass affects the distance boxes will slide?
A. Ramp, thermometer
B. Balance, ruler
C. Stopwatch, ruler
D. Balance, string
2. A student wants to find our how many different kinds of birds are found in a park.
In addition to a bird identification book, the student should use ------
A. Binoculars
B. Goggles
C. A Microscope
D. A Hand Lens
3. The temperature where a liquid turns into a gas is called -----
A. 0 degrees for water Freezing Point
B. 200 degrees for water Condensation
C. 32 degrees for water Icing Point
D. 100 degrees for water Boiling Point
4. The temperature where a solid becomes a liquid is called ----
A. 10 degrees C for water melting point
B. 0 degrees C for water melting point
C. 39 degrees C for water boiling point
D. 120 degrees C for water freezing point
5. The temperature where liquid changes into a solid is called ----
A. 0 degrees C for water freezing point
B. 32 degrees C for water boiling point
C. 100 degrees C for water evaporation
D. 212 degrees C for water melting point
6. To change a gas into a liquid by removing heat is called -----
A. Freezing B. Consumption C. Condense D. Melting
7. Density is:______
How could you test to see if an object is more or less dense than another?
8. Choose TRUE or FALSE for each statement about mixtures:
T / F - Mixtures are held together by chemical properties.
T / F - In a mixture, each part keeps its own physical properties.
T / F - A mixture can be made of solids, liquids, and gases.
9. How are mixtures and solutions alike?
A. They are both only made of one thing
B. They both contain at least two things
C. They are easy to separate
D. They are hard to separate
10. How is a solution different from a mixture?
A. Mixtures are only made of two things
B. In a solution, the parts are uniformly distributed throughout
C. In a solution something always dissolves
D. In a solution a new substance forms with new chemical properties
11. A type of force that pulls iron or steel across a distance that also attracts or repels ---
A. Gravity
B. Friction
C. Magnetism
D. Earth, Wind, and Fire
12. How is skating on concrete different from skating on a wooded floor such as at a skating rink?
A. Less friction on concrete so you can go fast.
B. More friction on a wooden skating rink floor to go slower.
C. They both have the same amount of friction.
D. More friction on concrete so you can’t go as fast as on a
wooden skating rink floor.
14.
A B
D
C
The sketch above shows two square boxes being held in position with 5 ropes.
The round ball will flip upward if which rope is cut? Rope: ______
15. When you jump in the air, what force causes you to return to the ground?
A. Gravity pushes people and objects away from Earth.
B. Magnetism pulls people and objects to the outer parts of Earth.
C. Friction moves people and objects on Earth in many directions.
D. Gravity pulls people and objects to the center of Earth.
16. Some students want to see who can ride their skateboard down a ramp the fastest. Which of the following tools would provide the most useful data?
A. a meter stick and a stopwatch
B. a stopwatch and a balance
C. a meter stick and a thermometer
D. a triple beam balance and a ruler
17. You want to measure the volume of a large marble. The best way to do this is with—
A. a ruler, some water, and a beaker
B. a balance, a graduated cylinder and water
C. a beaker, a hot plate, and water
D. a graduated cylinder and water
18. Which of the following is an example of correctly using a scientific tool?
A. A balance can be used to measure the length of pond snails.
B. A graduated cylinder can be used to collect pond snails.
C. A hand lens can be used to observe how pond snails move.
D. A microscope can be used to measure the mass of a pond snail.
19. What is the length of the length of the
paperclip to the nearest centimeter? ______
Show the steps that you followed to answer
this accurately: