What forces act on a rock sitting on the ground?

• Gravity and normal force

• Friction and normal force

• Gravity and friction

• Air resistance and gravity

Tags

NGSS.MS-PS2-4

In a scenario where forces are balanced, what is the net force?

• 1 N to the left

• 1 N to the right

• 2 N to the right

• 0 N

Tags

NGSS.HS-PS2-1

When a rock is pushed horizontally with a force equal to the force of friction, what is the net force?

• 3 N to the right

• 2 N to the left

• 1 N to the right

• 0 N

Tags

NGSS.MS-PS2-2

What happens to the rock when the push force exceeds the friction force?

• It stays in place

• It moves upwards

• It moves to the left

• It moves to the right

Tags

NGSS.MS-PS2-2

What is the net force when a rock is pushed with 3 N to the right and opposed by 2 N of friction?

• 1 N to the left

• 1 N to the right

• 2 N to the right

• 0 N

Tags

NGSS.MS-PS2-2

How does air resistance affect the net force on a falling rock?

• Increases the downward force

• Increases the upward force

• Reduces the downward force

• No effect

In the scenario with air resistance, what is the net downward force on the rock?

• 0 N

• 4 N

• 5 N

• 1 N

Tags

NGSS.MS-PS2-2

What results from unbalanced forces acting on an object?

• No change occurs

• The object will move upwards

• The object will move in the direction of the greater force

• The object remains stationary

Tags

NGSS.MS-PS2-2

If two opposing forces of 4 N and 3 N act horizontally on a rock, what is the net force and its direction?

• 0 N

• 1 N to the left

• 1 N to the right

• 7 N to the right

Tags

NGSS.MS-PS2-2

What is the net force when a rock is pushed with 4 N to the right, opposed by 1 N to the left and 2 N of friction?

• 1 N to the right

• 1 N to the left

• 0 N

• 2 N to the right

Tags

NGSS.MS-PS2-2