Average Speed
Adhesion, Cohesion, or Surface Tension
Law of Conservation of Mass
Newton's 3 Laws
How many atoms?
100
It takes a 7 N force to cause a 0.028 kg object to begin moving. What is the acceleration of the object as it begins to move?
250 m/s2
100
After it rains, water droplets stick to a window glass instead of sliding off immediately.
Which property of water explains why this occurs?
adhesion
100
What are the reactants?
Left Side
100
When a car stops suddenly, the passengers still feel forward motion. This is due to the inertia of motion whereby the car begins to stop while the body inside is still in a state of motion
1st Law
100
4Na + O2 
2Na2O
How many sodium atoms are produced in one sodium oxide molecule?
2
200
The mass of the rocket is now 760.0 kg and its acceleration is 7.0 m/s2. How much force is now being applied to the rocket?
5320N
200
A student places drops of water onto the surface of a coin. The water forms a raised dome on top of the coin before spilling over.
Which explanation BEST describes why the water forms this shape?
cohesion
200
What are the products?
The right side
200
A dirty dish lying on the table will not move or get cleaned unless you apply some force and put it in the dishwasher
1st Law
200
4Na + O2 2Na2O
How many sodium atoms are produced in seven sodium oxide molecules?
14
300
What is the acceleration of the case of water bottles?
0.5m/s2
300
A water strider bug can walk across the surface of a pond without sinking.
Which explanation BEST describes this phenomenon?
Surface Tension
300
If there were 43 grams of hydrogen peroxide and 27 grams of liquid water, how many grams would there be of oxygen gas?
16 grams
300
When we kick a soccer ball in a specific direction, we are exerting force on the ball. The harder we kick, the more force we apply, and the farther the ball goes
2nd Law
300
4Na + O2 2Na2O
How many sodium atoms are produced in two sodium oxide molecules?
4
400
- Force 1 = 10 newtons (N) to the east
- Force 2 = 8 newtons (N) to the west.
- What is the net force (N) on the cart
2 Newtons to the east
400
A student gently places a needle on the surface of water in a clear glass. The needle floats with a slight dip in the water.
What property of water helps the needle float on its surface?
Surface Tension
400
How many atoms of each element are in this equation?
4 atoms of hydrogen
4 atoms of oxygen
400
In racing cars, engineers try to keep vehicle mass as low as possible. This means with lower mass more acceleration can be provided. If the acceleration is higher, the chances of winning the race are also increased.
2nd Law
400
4Na + O2 2Na2O
How many sodium atoms are produced in 6 sodium oxide molecules?
12
500
Two forces are acting on a 10‑kilogram (kg) cart: Force 1 = 10 newtons (N) to the east Force 2 = 8 newtons (N) to the west
what is the acceleration (m/s2) of the cart?
0.2 m/s2
500
Which of the following statements accurately describe the property of adhesion?
1. Water moves upward through the stem of a plant.
2. Water molecules are attracted to the surface of a glass beaker.
2
500
How many elements are in this equation?
2 elements
500
When you sit in a chair, you are constantly pushing on the chair with a downward force. The chair is also pushing you back with an upward force; otherwise, the chair would collapse and you would fall.
3rd Law
500
4Na + O2 2Na2O
How many sodium atoms are produced in 10 sodium oxide molecules?
20