Net Force Quiz

What is the net force on an object when two forces of 5 N and 3 N are applied in the same direction?

• 2 N

• 8 N

• 5 N

• 3 N

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DOK Level 1: Recall

If an object is not moving or is moving at a constant speed, what can we say about the net force acting on it?

• The forces are unbalanced.

• The net force is zero.

• The net force is increasing.

• The net force is decreasing.

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DOK Level 2: Skill/Concept

What type of force opposes the motion of objects sliding against each other?

• Magnetic force

• Gravitational force

• Frictional force

• Elastic force

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DOK Level 1: Recall

When you jump, what force pulls you back down to the ground?

• Magnetic force

• Frictional force

• Gravity

• Normal force

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DOK Level 1: Recall

What is the force called that acts perpendicular to the surface an object is resting on?

• Gravity

• Friction

• Normal force

• Tension

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DOK Level 1: Recall

If a book is resting on a table, what can be said about the forces acting on it?

• They are balanced because the book is not moving.

• They are unbalanced because gravity is acting on the book.

• Only frictional forces are acting on the book.

• Only normal forces are acting on the book.

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DOK Level 2: Skill/Concept

Calculate the net force if two children push a wagon in opposite directions, one with a force of 10 N and the other with 15 N.

• 25 N in the direction of the larger force

• 5 N in the direction of the smaller force

• 5 N in the direction of the larger force

• 10 N in no particular direction

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DOK Level 2: Skill/Concept

Why does a heavier object not always fall faster than a lighter one?

• Because of air resistance

• Because heavier objects have less gravitational pull

• Because lighter objects have more gravitational pull

• Because of magnetic forces

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DOK Level 3: Strategic Thinking

Imagine you are pushing a sled across a snowy field. If you stop pushing, the sled eventually stops due to:

• Normal force

• Gravity

• Friction

• Magnetic force

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DOK Level 2: Skill/Concept

Design an experiment to test how the surface type affects the frictional force on a sliding object.

• Measure how far an object slides on different surfaces when pushed with the same force.

• Drop objects from different heights and measure the time they take to hit the ground.

• Push an object with varying forces and measure the speed.

• Weigh objects on different surfaces to see if weight changes.

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DOK Level 3: Strategic Thinking