Forces, Gravity, Weight and Mass Quiz

Gravitational force between objects depends on mass and distance. Venus and Earth have about the same mass. However, the gravitational force between Venus and the sun is stronger than the gravitational force between Earth and the sun. What is the reason for this difference?

• a. Earth is closer to the Sun.
• b. Venus is closer to the Sun.
• c. Venus and Earth are far apart.
• d. Venus and Earth are close together.

A measure of the amount of matter in an object is ______________.

• mass
• weight

The width of the arrows in the illustration below represents the strength of the gravitational attraction between two objects Using the law of universal gravitation, select the answer that best explains why the arrows are thicker in the top figure?

• a. The gravitational force is slightly weaker in the top figure as compared to the bottom figure.
• b. The masses of the objects in the top figure are different than the masses of the objects in the bottom figure.
• c. The distance between the objects is shorter in the top figure as compared to the bottom figure.
• d. The smaller object is in free fall.

Leanna decided to rearrange her bedroom by moving her dresser to the opposite wall. She tried pushing it, but found that the dresser would not move. What force was Leanne NOT able to overcome?

• a. electrical force
• b. magnetic force
• c. balanced force
• d. frictional force

The illustration below shows Earth and the moon. The arrows represent the gravitational attraction between the two. When is the gravitational attraction between Earth and the moon the strongest?

• a. when the moon is full
• b. when North America faces the moon
• c. when Earth and the moon are the closest to one another
• d. when Earth and the moon are the farthest apart from each other

Aito carried out an experiment to separate the components in a mixture. The steps Aito took are shown in the illustration below. What forces did Aito depend upon to separate the components in this mixture?

• A. magnetic and electrical forces
• B. magnetic and gravitational forces
• C. gravitational and electrical forces
• D. balanced and unbalanced forces

A measure of the force of gravity on an object is ________.

• mass
• weight

______________ are applied only when 1 object touches another object.

• Contact forces
• non contact forces
• gravity
• electrical force
• magnetic force

____________ is a force that pulls objects toward each other as a result of their masses.

• contact forces
• non contact forces
• gravity
• electrical force
• magnetic force

When two oppositely charged particles are brought near each other, they produce a force field. The illustration below shows the force around two charged particles Which force do the arrows represent?

• a. an unbalanced force
• b. a frictional force
• c. an electrical force
• d. a gravitational force.