What is a Force?

• The amount of Energy an object has

• How fast an object is moving

• A push or a pull

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

A 2 kg object and a 1 kg object accelerate at the same rate. Based on the equation above, for this to happen, what has to be true about the Net Force acting on the 2 kg object?

• Equal net force

• Less net force

• More net force

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Two forces that act in the same object, are the same size, and act in opposite directions are called ________ Forces.

• Balanced Forces

• Unbalanced Forces

If an object is moving to the right at a constant speed, what does this mean about the forces acting on that object?

• They are balanced

• They are unbalanced, and the larger force is acting to the right

• They are unbalanced, and the larger force is acting to the left

Tags

NGSS.MS-PS2-2

A person pushes with an equal amount of force on a car and on a lawnmower. Which object will accelerate at the greater rate?

• The lawnmower because it has less mass

• The car because it has more mass

• Both objects will accelerate at the same rate because the same force is applied

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

Based on this picture, which of the following is NOT possible?

• The skater is moving to the right and gaining speed

• The skater is moving to the right at a constant speed

• The skater is not moving

• The skater is moving to the left at a constant speed

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

In the picture shown above, what is the Net Force acting on the couch?

• 25 N Right

• 25 N Left

• 105 N Down

• 425 N Right

Tags

NGSS.MS-PS2-2

A soccer ball is about to be kicked by two players at the same time. In which direction will the ball accelerate while being kicked?

• Right

• Left

• It cannot be determined without knowing the mass of the ball

• It cannot be determined without knowing in which direction the ball is moving

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

What is mass?

• The measure of the amount of “stuff” an object is made of, measured in grams or kilograms

• The weight of an object, measured in Newtons

• The size of an object, measured in cm³

• The amount of space something takes up, measured in Liters

In the picture shown, F₁ = 8 N, F₂ = 20 N, F₃ = 20 N, F₄ = 40 N. If the mass of the object is 4 kg, what is the size and direction of the object’s acceleration?

• 10 m/s² up

• 10 m/s² down

• 7 m/s² to the right

• 3 m/s² to the left

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2