Forces and Motion FSSA Review

Sha'Narriayh and Meytana were studying friction and decided to do an experiment. They placed four equally sized blocks made from different materials on an elevated plastic tray. They watched the blocks move down the tray.

Which block would experience the least amount of friction as it moved down the tray

• ice block

• sponge block

• sandpaper block

• plastic block

Mr. Alex mops the gym floor every day. When he finished mopping, he puts up the sign shown.

The effect of which force is weakened when the floor is wet?

• friction

• gravitation

• inertia

• magnetism

Bar magnets have a north pole (N) and a south pole (S). Jayden places a bar magnet on three small straws so that it can roll. Her set up is shown.

Placing which of the following objects at point X will cause the bar magnet to move away from point X?

• an iron nail

• an aluminum can

• the north end of another magnet

• the south end of another magnet

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The picture shows the change in the motion of a ball.

Which is the best explanation of the change in motion shown?

• energy is never created or destroyed

• moving air can be used to move an object

• motion is caused by exerting force on an object

• electrical energy can be changed to mechanical energy

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Which of the following is an example of energy causing change?

• a leaf casting a shadow in sunlight

• a ball rolling when a boy kicks it

• a rock sitting at the top of a hill

• a flag hanging on a flagpole

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Xavier goes down a playground slide. Which of the following describes the role gravity plays on his motion?

• it slows down his body as he slides towards the ground

• it makes it easy for him to climb up the slide's stairs

• it pulls his body down the slide toward the ground

• it pushes him up each of the slide's stairs

When Angel tries to lift his backpack filled with books, he finds it hard to do. Which force pulls down on the backpack when he tries to lift it?

• magnetic force

• electrical force

• Angel's pull

• gravity

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Kevin pushes a shopping cart with a certain force. Then, while Kevin pushes, Katelynne also pushes with the same amount of force in the same direction. How does Katelynne's pushing affect the motion of the cart?

• the force is increased, so the cart moves faster

• the friction is increased, so the cart stops moving

• the force is decreased, so the cart moves slowly

• the forces are balanced, so the cart's motion does not change

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Joshua and Jeremiah are comparing and analyzing data from their toy car racing trials. When they ran the trials for car speed, what were Joshua and Jeremiah measuring?

• the distance each car moved

• the amount of time each car moved

• the distance each car moved in a certain amount of time

• the direction each car moved in a certain amount of time

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Charlie and Adam each separately conducted an experiment to compare the running speeds of cats and dogs. Each of them dropped a treat and measured how fast the different animals ran to it. The table shows their results.

Charlie and Adam's Results

Student Results

Charlie The cats ran to the treat faster.

Adam The dogs ran to the treat faster.

Which of the following best compares the results AND explains what Charlie and Adam should do next?

• Since their results differ, they should forget the results and start a new experiment.

• Since their results are the same, they should conclude that cats and dogs are equally fast.

• Since their results differ, they should conclude that neither cats nor dogs are fast runners.

• Since their results differ, they should look for differences in how they each conducted the experiment.

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