Physics Review

What is Newton's second law of motion?

• What goes up must come down

• For every action there is an equal and opposite reaction

• Force equals mass multiplied by acceleration

• An object in motion stays in motion at the same speed and direction Unless acted on by an unbalanced force

A sprinter with a mass of 70kg accelerates at a rate of 5m/s² . What force is the sprinter exerting? Hint: F=m×a

• F= 1,000n

• F=11n

• F=350n

• F=110n

What is Newton's first law of motion??

• An object in motion stays in motion at the same speed and direction Unless acted on by an unbalanced force

• Force equals mass multiplied by acceleration

• What goes up must come down

• For every action there is an equal and opposite reaction

Which one is NOT an unbalanced force?

• Friction

• Gravity

• Acceleration

What is Newton's Third law of motion??

• An object in motion stays in motion at the same speed and direction Unless acted on by an unbalanced force

• What goes up must come down

• For every action, there is an equal and opposite reaction

• Force equals mass multiplied by acceleration

• Ist

• 2nd

• 3rd

• 5th

• 3rd

• 1st

• 2nd

• 10th

F=

• M×A

• N×M

• A×A

What is force measured in?

• Newtons

• m/s²

• Grams

• Joules

What is acceleration measured in?

• Newtons

• Joules

• m/s²