Gravitational Force and Effects Worksheet

Front

Under what conditions would a bowling ball and a stuffed bear dropped from a tall building have the same acceleration?

Back

If there was no air resistance.

Front

Both the sun and the moon exert gravitational force on the waters of Earth. This creates the tides we are familiar with. Look at the photograph below. Which of the following Best explains why the moon has a greater effect on the tides than the sun?

Back

The moon is closer to Earth than the sun is.

Front

A scientist, using a very precise scale, finds that a backpack full of heavy scientific textbooks weighs less on top of a high mountain than it does at sea level. What gravitational principle is this phenomenon illustrating?

Back

The gravitational force between two objects depends on the distance between them.

Front

How and why are the weights of Rock A (2 kg, 1 N on the moon) and Rock B (4 kg, 2 N on the moon) likely to change once brought back to Earth?

Back

Both rocks are likely to weigh more on Earth because Earth exerts a stronger gravitational force on their respective masses than the moon.

Front

Cheng rubs a balloon on a wool sweater and then holds it next to another balloon. The other balloon moves away from the balloon he is holding. What hypothesis might Cheng be testing?

Back

What happens when a charged balloon is placed near another charged balloon?

Front

Circuits are used to power electronics. You notice that some electronics require more electricity than others. Which question can you ask to investigate how circuits can power electronics that require more energy?

Back

All of the above.

Front

Which material caused the balloon to pick up the MOST confetti dots?

Back

polar fleece

Front

How could this class improve their experimental design to better test their hypothesis?

Back

Buy more balloons to make sure that the materials are treated in the same way.

Front

You have a horseshoe magnet, but you do not know which end is north or south. Which investigation would give you the answer?

Back

Putting the north side of another magnet near one of the poles of another magnet. If the north side repels the mysterious side, it is north.

Front

Your friend places a magnet on the table and states that magnets have only attractive forces. You disagree, saying that magnets have attractive and repulsive forces. To show your friend, you place another magnet on the table, as shown below. Nothing happens. What should you do to convince your friend of your claim?

Back

Turn the second magnet around and move them closer together.