8.7A Acceleration Corrections

Which of the following is a unit for acceleration?

• km/s
• m/s²
• mi/hr
• ft

Rearrange Newton's 2nd Law of Force and Motion equation to solve for Acceleration (a):

• F= ma

• m= a/f

• a= F/m

• a= m/F

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NGSS.MS-PS2-2

A student pushes a 10 kg box with a force of 20 N. What is the acceleration of the box?

Mathematical Equivalence

ON

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NGSS.MS-PS2-2

A 5 kg ball is kicked with a force of 25 N. What is the acceleration of the ball?

Mathematical Equivalence

ON

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NGSS.MS-PS2-2

A 50 kg person goes down a hill on a sled with a force of 100 N. What is the acceleration of the sled if it has a mass of 20 kg?

Mathematical Equivalence

ON

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NGSS.MS-PS2-2

NGSS.MS-PS2-1

Hannah is pulling her younger brother on a sled. Initially, the sled has a mass of 20 kg, and she applies a force of 40 N, which causes the sled to accelerate at a certain rate. If Hannah’s brother decides to bring along a heavy backpack that adds 10 kg to the sled, but Hannah still applies the same force, how will the acceleration of the sled change?

• No change

• Increase in acceleration

• Decrease in acceleration

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NGSS.MS-PS2-2

A team of workers is moving a crate with a force of 100 N, and it accelerates at 2 m/s². If the workers double the force they apply to 200 N but the mass of the crate remains the same, what will happen to the acceleration of the crate?

• No change in acceleration.

• Increase in acceleration.

• Decrease in acceleration.

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NGSS.MS-PS2-2

Carlos is driving his car, which has a mass of 1,000 kg, and he applies a constant force to accelerate it. As the car speeds up, Carlos adds a trailer to the car, increasing its mass to 1,300 kg. If Carlos applies the same force to the car and trailer, how will the acceleration of the vehicle change?

• No change in acceleration.

• Increase in acceleration.

• Decrease in acceleration.

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NGSS.MS-PS2-2

A toy car moves with a certain acceleration when a child pushes it with a force of 10 N. If the mass of the car is halved but the child continues to push with the same force, what will happen to the acceleration of the toy car?

• No change in acceleration.

• Increase in acceleration.

• Decrease in acceleration.

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NGSS.MS-PS2-2

Two identical carts are pushed across a flat surface. Cart A is pushed with 20 N of force and accelerates at 4 m/s². Cart B has the same mass as Cart A but is pushed with 40 N of force. How does the acceleration of Cart B compare to Cart A?

• Both carts have the same acceleration.

• Cart A will have double the acceleration of Cart B.

• Cart B will have double the acceleration of Cart A.

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NGSS.MS-PS2-2