Chemistry 1
Chemistry 2
Physics 1
Physics 2
6 & 7 Grade
100
What is the atomic number of silver (Ag)?
47
100
Which side are the metals and non-metals located on a periodic table?
metals - left of the step later
non-metals - right of the step later
100
What does a balanced and unbalanced force mean?
balanced - at rest (not moving)
unbalanced - in motion (unequal forces causing motion)
100
Which of the following graphs represents an object at rest?
A
100
Describe the particles in a more dense object.
Close together
200
Elements in the same period have what in common?
Number of energy levels/shells
200
How many atoms atoms of each element are in acetic acid (C2H4O2)
Carbon - 2 Hydrogen - 4 Oxygen - 2
200
Person A pulls a rope to the left with 45 N of force. Person B pulls the same rope to the right with 60 N of force. What is the net force applied to the box?
15 N right
200
Which of the following graphs represents an object moving at a constant speed forward?
B and F
200
What is kinetic and potential energy?
kinetic - energy in motion
Potential - stored energy (relative to height)
300
Elements in the same group have what in common?
Number of valence electrons (reactivity & chemical properties)
300
Describe the physical properties of metalloids.
Properties of both metals and nonmetal and are semiconductors.
300
A ball is thrown and moves forward about 28 meters in 4 seconds. What is its speed in meters per second?
7 m/s
300
Which of the following graphs represents an object moving at a constant speed back to their original starting point?
C
300
What is the density of an unknown object with a mass of 7g and a volume of 15ml? Round to the nearest 2nd decimal.
0.47 g/ml
400
How many protons, neutrons, and electrons does an atom of potassium (K) have?
19 protons, 20 neutrons, 19 electrons
400
Name the 5 evidences of a chemical change.
Precipitate, Energy change, Color change, Bubbles (gas), Smell (odor), AND light (extra credit)
400
What is the difference between speed, velocity, and acceleration?
Speed - distanced traveled over a period of time. Velocity - distance with time. Acceleration - change in speed/velocity
400
Which of the following graphs represents an object accelerating and decelerating?
D and E
400
Where is the most potential and kinetic energy on a rollercoaster?
most potential - top of the rollercoaster
most kinetic - near the bottom
500
How many energy shells/levels and valence electrons does an aluminum (Al) have?
3 energy shells/levels and 5 valence electrons
500
How many total atoms are in the following molecule 5Al2(SO4)3
85 total atoms
500
After an object is pushed what forces act on it to change its motion? Describe its motion after it's pushed.
The applied force causes the box to move. Friction is the opposing force that causes the box to slow down and stop.
500
What is Newton's 1st, 2nd, 3rd Law?
1st - Inertia, 2nd - F=ma, 3rd - For every action there is an equal and opposite reaction.
500
What types of energy are involved in driving a car?
chemical (gas), electrical (ignition), and mechanical (movement)