Forces Investigation Flashcard

Front

Which surface on the slope of a hill makes a log roll the fastest?

Back

Smooth grass, because it produces the least friction

Front

A student is investigating how much force is needed to slide a box across the floor using a contact force. Which statement describes a contact force?

Back

A force that is applied when objects touch

Front

The force between Kiesha's dog and the ramp is a __________ force. The safest material for the ramp will have the __________ friction between the dog’s paws and the ramp.

Back

contact; most

Front

Which type of surface will make moving a heavy box the easiest?

Back

Smooth surface

Front

A student pushes a book across a shelf until it falls to the floor. Which force caused the book to fall to the floor?

Back

Gravity

Front

Look at the drawing. A student wants to investigate magnets. Two magnets are placed so the shaded areas are next to each other. The shaded ends are the same poles. Which best describes what happens if the two magnets are pushed toward
each other?

Back

The shaded ends of the magnets repel and move apart.

Front

Look at the drawing. A student places three magnets on a stick. The magnets are arranged as shown.  Choose the words to complete the sentences. The student explains their observations as follows. Magnets A and B have a noncontact force that causes them to__________. Magnets B and C have a noncontact force that causes them to__________.

Back

repel; attract

Front

Which material will make a toy car roll the slowest down a ramp?

Back

Carpet, because it produces the most friction

Front

Which forces are noncontact forces?

Back

Gravity and magnetism