Friction and Motion

What is resistance to motion called?

• viscosity

• patterns

• friction

• resistance

What is produced by the friction of two surfaces rubbing against one another?

• matter

• steam

• electricity

• heat

Tags

NGSS.MS-PS1-4

Which of these pendulums do you predict will have the fastest motion?

• the longest one

• the shortest one

• the medium length one

• all will swing the same speed

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

NGSS.MS-PS3-1

What is the purpose of the air in air hockey?

• keeps players cool

• dries players' hands

• increases friction

• reduces friction

When you push a box across the floor to make it move you need to apply enough force to overcome the force of ​ (a)   between the box and the floor.

• friction

• gravity

• air resistance

By looking at the picture, what is the best conclusion?

• Friction is in the same direction as Motion

• The Friction force  is  opposite to the direction of  the motion force

• Friction does not count

• I forgot my I-pad

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Which of the following best describes the effect of friction on motion?

• Friction always speeds up motion.

• Friction always slows down motion.

• Friction has no effect on motion.

• Friction can either speed up or slow down motion depending on the situation.

Tags

DOK Level 2: Skill/Concept

Which of the following is an example of a force where the objects must be in contact?

• Gravitational force

• Magnetic force

• Frictional force

• Electrostatic force

Which forces does this train have to overcome to reach its maximum speed?

• electricity, friction, and air resistance

• gravitational, magnetic, normal force

• tension, spring, friction

• friction, air resistance, gravitational

Tags

NGSS.MS-PS2-2

Which of the following is an example of kinetic friction?

• A book resting on a table

• A car skidding to a stop

• A magnet attracting a nail

• A balloon sticking to a wall

Tags

DOK Level 2: Skill/Concept