Force Diagrams and Vectors Review

A box slides across a floor at a constant velocity. What forces act on the box?

• friction, gravity
• friction, tension, gravity
• friction, normal force, gravity
• friction, normal force, net force

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

Tags

NGSS.MS-PS2-2

A box slides across a perfectly smooth floor at a constant velocity. (The phrase "perfectly smooth" suggests that there is NO friction). What forces act on the box?

• tension, gravity
• tension, gravity, normal force
• tension, gravity, normal force, friction
• gravity, normal force, friction

What are the two ways we can have UNBALANCED forces?

• 1) unequal forces in opposite directions  and 2) forces in same direction
• 1) forces in same direction and 2) equal forces in opposite direction
• 1) unequal forces in opposite directions and 2) forces in opposite directions but same sizes
• you can't have unbalanced forces, forces will always balance each other out

Tags

NGSS.MS-PS2-2

A box is sliding across a floor while experiencing a frictional force between the box and floor. The box is sliding from left to right. What direction is the force of friction pointing?

• up
• down
• right
• left

Tags

NGSS.MS-PS2-2

Name the missing force...

• frictional force
• weight force
• thrust
• buoyant force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Name the missing force...

• normal force
• applied force
• frictional force
• tension force

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

What forces are on a leopard laying on a log?

• F_g & F_app

• F_b & F_g

• F_g & F_N

• F_f & F_N

Tags

NGSS.MS-PS2-4

What is the net force?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

Name the missing force...

• spring force
• weight force
• normal force
• buoyant force

Tags

NGSS.MS-PS2-4