Force Vector Diagrams

The hockey puck is moving at a constant velocity across the ice. What forces does the puck experience at this moment?

• None

• Gravity

• Gravity and Normal

• Gravity, Normal, and Friction

• Gravity, Normal, Friction, and Applied

The coffee cup in the picture is at rest on the table. What is true about the Normal force?

• The normal force is exactly 15

• The normal force is less than 15

• The normal force is more than 15

• The normal force is -10

Which is moving up?

• a & b
• b
• b & c
• d

In a tug of war, when one team is pulling with a force of 100 N and the other at 80 N. What is the net force?

• 20 N
• 80 N
• 100 N
• 180 N

A box is moving to the left up a ramp. Which way is the force of friction pointing?

• down the ramp to the right
• up the ramp to the left
• there is no friction
• straight up

Adding which two vectors would give a resultant of zero magnitude?

• A + B

• A + E

• B + E

• C + F

• A + D

Adding which two vectors would give the resultant vector with the greatest magnitude?

• A + B

• B + D

• C + D

• D + E

• E + F

How do you combine vectors if they are in opposite directions?

• Add
• Subtract
• Pythagorean Theorem
• Use trigonometry

When a car accelerates forward on a flat surface, in which direction does the frictional force between the tyres and road act?

• Forward

• Backward

• Upward

• Downward

If two forces, each of 10 N, act on an object in opposite directions, what is the net force on the object?

• 0 N

• 10 N

• 20 N

• 5 N