Force (Newton's 2nd Law: Acceleration)

Yoda pushed a 75 kg disappointment away from him at a rate of 5 m/s². How much force did he apply? (a)  

• 80 N
• 15 N
• 1875 N
• 375 N

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NGSS.MS-PS2-2

The amount of force needed to accelerate a 5kg object 3m/s² is (a)   .

• 8N
• 1.6N
• 0.6N
• 15N

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NGSS.MS-PS2-2

A 20 kg bike accelerates at 10 m/s². The force was (a)   .

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

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NGSS.MS-PS2-2

If you increase the mass of an object, its acceleration
(a)  

• decreases
• stays the same
• also increases
• stops

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NGSS.MS-PS2-2

If you increase the force on an object, its acceleration (a)  

• also increases
• decreases
• stays the same
• stops

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NGSS.MS-PS2-2

The force needed to accelerate a 500 kg object at a rate of 50 m/s² is ​ (a)   .

• 10 N
• 25 m/s2
• 25,000 N

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NGSS.MS-PS2-2

Force is equal to

(a)   * ​ (b)  

• mass
• acceleration
• weight
• speed

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NGSS.MS-PS2-2

Toy car vs real car

Groups:

(a) Toy Car

,

(b) Real Car

• More inertia

• Less force to move

• More force to move

• More mass

• More force to stop

• Less inertia

• Less mass

• Less force to stop

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NGSS.MS-PS2-2

Match the following Units

• m/s²

• Mass

• Kilograms (Kg)

• Force

• Newtons (N)

• Acceleration

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NGSS.MS-PS2-2

Newton's 1st and 2nd Laws of Motion. Each will have 4 answers.

Groups:

(a) Newtons 1st Law of Motion

,

(b) Newton's 2nd Law of Motion

• More massive objects require more force to move or stop (accelerate)

• More massive objects require more force to change direction (accelerate)

• Law of acceleration

• Law of Inertia

• An object in motion tends to stay in motion unless acted upon by an outside force

• An object at rest tends to stay at rest unless acted up on by an outside force

• F = ma

• Objects will maintain the same velocity (speed, direction) until an outside force changes it

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NGSS.MS-PS2-2