Force Problems

Jupiter has about 317 times more mass than Earth. What can you infer from this fact? 

• That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.

• That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.

• That Jupiter’s and Earth’s gravitational forces are equal.

• Mass has no effect on the gravitational force between two objects

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NGSS.MS-PS2-4

This type of force resist motion between two surfaces that are pressed together

• contact

• gravity

• friction

You have 2 circular objects, and each has a positive charge near each other, but not touching. Which statement describes the force that is exerted on the objects due to their electric charge?

• There is a force pushing both objects to the left.

• There is a force pulling the objects toward each other.

• There is a force pushing the objects away from each other.

• There is no force on the objects due to their electric charge.

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NGSS.MS-PS2-3

NGSS.MS-PS2-5

You have two pairs of charged objects interacting with each other. The first pair (A and B) are 10 cm apart. A has a +1 charge and B has a -1 charge.

Pair C and D are 17cm apart. C has a +1 charge, and D has a -1 charge.

Which of these statements is true?

• There are no electric forces because the charges in each pair of objects cancel.

• The electric force between A and B is smaller than the electric force between C and D.

• The electric force between A and B is greater than the force between C and D.

• The electric force between A and B is identical in magnitude to the electric force between C and D.

Tags

NGSS.HS-PS2-4

Is this a balanced or unbalance force?

• Balanced

• Unbalanced

• Neither one

• Both

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NGSS.MS-PS2-1

NGSS.MS-PS2-2

Calculate the net force of the object.

• 10N

• 2N

• 15N

• 5N

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Is this a balanced or unbalanced force?

• Balanced

• Unbalanced

• Neither

• Both

Tags

NGSS.MS-PS2-2

Students are playing tug-of-war. If group B pulls the rope to the right with a force of 400 N and group A pulls the rope to the left with a force of 250 N, what will happen to the ribbon in the middle of the rope?

• The ribbon will move to the left and group A will win the tug-of-war.

• The ribbon will move to the left and group B will win the tug-of-war.

• The ribbon will move to the right and group B will win the tug-of-war.

• The ribbon will move to the right and group A will win the tug-of-war.

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Student A is pulling at 57 newtons and student B is pushing at 96 newtons. What is the net force (calculation).

• 153 N Left

• 39 N Left

• 153 N Right

• 39

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Mrs. Jones is pulling a rope at 73 newtons, and a student is pulling a rope at 47 newtons. What is the net force (calculation).

• 26

• 120 N Left

• 26 N Left

• 120

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2