End of the year review 2

An airplane suddenly hits a strong head wind (pushes against forward motion), what will occur?

• Speed up

• Change direction

• Descend

• Go slower

How can this motion best be described?

• Car at a constant speed

• Stopping at a light

• Slowing down

• Speeding up

Which graph shows constant speed, decrease in speed,

and then a constant speed?

• Graph on left

• Both Graphs

• Graph on right

• Neither graph

An object moving at a constant speed...

Balanced or Unbalanced?

• Balanced

• Unbalanced

force that happens when two objects rub against each other

• friction
• contact
• attraction
• gravity

force exerted by a magnetic field

• matter
• magnetism
• contact
• universe

anything that has mass and takes up space

• matter
• force
• mass
• contact

A boy sits halfway down a grassy slope. What force stops him sliding down?

• Weight

• Gravity

• Friction

• Magnetism

On which surface will a toy car travel the furthest?

• Carpet

• Polished Wood

• Ice

• Grassy field

What is acceleration?

• A force that attracts or repels objects.

• The ability for an object to gain speed in a short amount of time.

• A force that slows or stops motion when two objects rub together.

• A force to move something closer to you.