NGSS.MS-PS2-2

Which force produces a change in motion?

• unbalanced force
• gravitational force
• balanced force
• frictional force

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NGSS.MS-PS2-2

What is the net force?

• 5 N
• 45 N to the left
• 5 N to the right
• 45 N to the right

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NGSS.MS-PS2-2

Why is it harder for the boy in Image B to get down the hill?

• Motion
• Friction
• Work
• Displacement

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NGSS.MS-PS2-2

How much force is needed to accelerate a 3 kg toy car at a rate of 1.5 m/s²? 

• 4.5 N
• 4.0 N
• 0.5 N
• 2.0 N

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NGSS.MS-PS2-2

The mass of a car is 1000 kg.  How much force would be required to accelerate the car at a rate of 3 m/s²? 

• 1000 ÷ 3
• 3 ÷ 1000
• 1000 x 3

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NGSS.MS-PS2-2

The momentum of an object is in the same direction as its

• force.

• velocity.

• acceleration.

• inertia.

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NGSS.MS-PS2-2

The sum of all forces acting on an object.

• Contact Force
• Balanced Force
• Unbalanced Force
• Net Force

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NGSS.MS-PS2-2

Balanced or unbalanced?

• balanced
• unbalanced

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NGSS.MS-PS2-2

An image of a toy rocket and forces are shown below. Assuming the only two forces on the toy rocket are lift and gravity, which of the following combinations would result in the rocket moving upward?

• Lift = 5 Newtons and Gravity = 5 Newtons

• Lift = 5 Newtons and Gravity = 4 Newtons

• Lift = 3 Newtons and Gravity = 4 Newtons

• Lift = 4 Newtons and Gravity = 4 Newtons

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NGSS.MS-PS2-2

Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 

• feathers 
• iron
• same
• depends on their friction

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NGSS.MS-PS2-2