Motion and Forces Quiz

Which of the following are common contact forces?

• Friction

• Buoyancy

• Gravitational

• Flight

What is the unit of measurement for mass?

• Gram
• Newtons
• Meters
• Meters per second

What is mass?

• Anything that has matter and occupies space

• The measure of gravitational force exerted on an object

• The rate at which an object moves

• The measure of the quantity of atoms in an object

True or False: The mass of an object is always equal to its weight.

• True

• False

A block is placed on a frictionless horizontal surface and is acted upon by a force of 100 N, as shown in the figure. What magnitude of force must be applied to the block from the opposite direction to stop its motion?

• 50 N

• 75 N

• 100 N

• 200 N

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Two opposing forces are acting on a box. Which set of forces will cause the box to move to the right?

• a = 22 N, b = 22 N

• a = 12 N, b = 13 N

• a = 15 N, b = 14 N

• a = 0 N, b = 6 N

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Two ropes are tied to a steel ring, and a student holds the free end of each rope. The students then pull on the ropes in a tug-of-war. If the forces exerted by the students are unbalanced, what happens to the ring?

• The ring remains at rest.

• The ring moves at a constant velocity.

• The ring accelerates in the direction of the net unbalanced force.

• The ring accelerates in the direction opposite the net unbalanced force.

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A block is being pushed from four sides with forces of different magnitudes, as shown in the picture. In which direction will the block move?

• North

• South

• East

• West

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The property of matter that allows it to continue in its existing state of rest or uniform motion until acted upon by an external force is called?

• Inertia

• Acceleration

• Gravity

• Velocity

Which of the following are non-contact forces?

• Gravitational Force

• Strong Nuclear Force

• Electromagnetic Force

• Weak Nuclear Force

• Friction

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