Test Unit 6 Counting Atoms Acceleration and Force and Motion

Quiz
•
Science
•
8th Grade
•
Medium
+3
Standards-aligned
Rosalynn Bailey
Used 8+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Methane (CH₄) reacts with oxygen (O₂) to form carbon dioxide (CO₂) and water (H₂O), as shown in the equation below:
CH₄ + 2O₂ → CO₂ + 2H₂O
Which statement best describes what happens during this chemical reaction?
The mass of methane used is the same as the mass of carbon dioxide produced.
The total mass of all the reactants is equal to the total mass of all the products.
The mass of oxygen used is equal to the mass of water produced.
The reaction produces extra mass in the form of gas.
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Sulfuric acid (H₂SO₄) reacts with sodium hydroxide (NaOH) to produce water (H₂O) and sodium sulfate (Na₂SO₄), as shown in the chemical equation below:
H₂SO₄ + 2NaOH → 2H₂O + Na₂SO₄
Calculate the mass of water produced.
94 g
63 g
17 g
34 g
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Sulfuric acid (H2SO4) reacts with sodium hydroxide (NaOH) to form
water (H2O) and sodium sulfate (Na2SO4).
H2SO4 + 2NaOH → 2H2O + Na2SO4
What is the cause-and-effect relationship in this reaction?
The reaction occurs because water is produced, causing
sulfuric acid to form.
Sulfuric acid and sodium hydroxide react, causing the
production of water and sodium sulfate.
The presence of sodium sulfate causes sulfuric acid and
sodium hydroxide to disappear.
Water forms first, which then causes the formation of
sodium sulfate.
Tags
NGSS.MS-PS1-2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Taleah is doing an experiment and starts with 2 molecules of water (2H₂O) in the reactants. She wants to know how many hydrogen atoms should be in the products.
What must be true for the reaction to follow the law of conservation of mass?
There are 8 hydrogen atoms in the products because new atoms are created.
There are 4 hydrogen atoms in the products because atoms are conserved.
There are 2 hydrogen atoms in the products because atoms are destroyed.
There are 6 hydrogen atoms in the products because some atoms disappear
Tags
NGSS.MS-PS1-5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two baseball pitchers are practicing their fastballs.
Pitcher 1 throws a ball using a force of 4 N.
Pitcher 2 throws a ball that has a mass of 0.14 kg and accelerates at 42 m/s².
Which statement is true based on this information?
Pitcher 2 used more force than Pitcher 1.
Pitcher 1 used more force than Pitcher 2.
Both pitchers used the same amount of force.
Pitcher 2 used less force than Pitcher 1.
Tags
NGSS.MS-PS2-2
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Four carts with different masses are being pulled across a flat surface. The table below shows the force applied to each cart, the friction acting against it, and the mass of each cart.
Which two carts experience the same acceleration?
Carts 1 and 2
Carts 1 and 3
Carts 2 and 3
Carts 2 and 4
Tags
NGSS.MS-PS2-1
NGSS.MS-PS2-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A mover is pushing a cart with a mass of 68 kg using a force of 3 N. Then, she places another box weighing 25 kg into the cart, increasing its total mass. This added mass would _____ the cart’s acceleration. To speed up the cart again, she pushes with more force, which would _____ the acceleration. This shows that mass is _____ proportional to acceleration, and force is _____ proportional to acceleration.
Which set of words correctly completes the sentences?
increase; decrease; indirectly; directly
decrease; increase; indirectly; directly
decrease; increase; directly; indirectly
increase; decrease; directly; indirectly
Tags
NGSS.MS-PS2-2
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