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WorksheetsLCP 1 Retest
Total questions: 13
Worksheet time: 10mins
The diagram shows a person applying an action force to a diving board. Which statement best applies to the reaction force?
A. The reaction force is not as large as the action force.
B. The reaction force acts in the same direction as the action force.
C. The reaction force is greater than the action force.
D. The reaction force acts in the direction opposite to the action force.
What is the net force acting on the box? And what direction will the box move?
2 N to the right
2 N to the left
8 N to the right
8 N to the left
A force of 48.0 newtons pushes a 14.0-kilogram case of water bottles across the surface of a table. The friction between the case of water bottles and the table surface is 41.0 N, as shown in the diagram. What is the acceleration of the case of water bottles?
0.5 m/s²
2.9 m/s²
3.4 m/s²
6.4 m/s²
A man is riding his bike 6 m/s2 . If he and his bike have a mass of 80 kg, what is the net force of the bicyclist?
A student is pulling a 100-kilogram cart, accelerating at 1.5 meters per second squared. A second student joins the first student in pulling the cart in the same direction, and the cart’s acceleration increases to 2.5 m/s². With how much force is the second student pulling?
50 N
100 N
150 N
250 N
A chemical equation is shown. Which statement correctly compares the number of atoms in the reactant and in the products?
The number of atoms in each molecule of liquid water is equal to the number of atoms in each molecule of oxygen gas.
The number of atoms in each molecule of hydrogen peroxide is equal to the number of atoms in each molecule of oxygen gas.
The total number of atoms in the hydrogen peroxide molecules is equal to the total number of atoms in the liquid water and oxygen gas molecules.
The total number of atoms in the hydrogen peroxide molecules is equal to the total number of atoms in each molecule of liquid water.
Which statement is an accurate comparison of the formula for ammonia (NH3) and the formula for sodium hydroxide (NaOH)?
The formula for sodium hydroxide has more atoms and more elements than the formula for ammonia.
The formula for ammonia has more atoms and more elements than the formula for sodium hydroxide.
The formula for sodium hydroxide has more atoms, but the formula for ammonia has more elements.
The formula for ammonia has more atoms, but the formula for sodium hydroxide has more elements.
The diagram shows a 100-kilogram box moving at a constant velocity of 2.0 meters per second (m/s) across a smooth surface. As the box continues to move, it will enter an area with a rough surface.
What is the net force on the box before it encounters the rough surface?
Net Force Before = (a)
What will happen to the boxes acceleration when it encounters the rough surface?
The box's acceleration will (b)
A student measures the mass of a tarnished silver ring and 50 mL of a baking soda solution. The student puts the ring in a pan, adds the baking soda solution to the pan, and stirs it well. After 30 minutes, the student removes the ring from the pan, and it appears shiny and new. The student observes tiny, yellow flakes in the solution at the bottom of the pan.
Move the correct answer to each box. Each answer may be used more than once.
The mass of the ring will (a) . The mass of the solution will (b) . The total mass of the ring and solution will (c) .
A ball rolls along a flat surface and slowly comes to a stop. Which statement best describes the reason for the ball’s change in motion?
The force that keeps the ball rolling slowly decreases.
The force of gravity gets stronger as the ball slows down.
The ball’s velocity decreases because of the force of friction.
The ball’s inertia is greater than the force applied to the ball.
The mineral albite is composed of four elements and has the chemical formula NaAlSi3O8. Which of these elements does albite contain?
Astatine
Sulfur
Nitrogen
Aluminum
What property of water allows water to stick to a window? (a)
What property of water allows water to gather as droplets? (b)
What property allows a paperclip to float in water? (c)
Match the water property to the right description:
The attraction between water molecules and other water molecules
Cohesion
The attraction between water molecules and different molecules
Adhesion
Cohesive bonds at the water's surface
Surface Tension
