9-26 Forces and Newton's 1st Law Check

Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?

(a)  

• 60 N unbalanced to the right
• 60 N balanced to the right
• 10 N balanced to the right
• 10 N unbalanced to the right

Answer explanation

When two forces act on an object in the same direction, their forces are added to each other.

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What is net force?

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What is the net force?

(a)  

• 5 N left
• 30 N left
• 25 N right
• 55 N right

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A ____________ is a push or a pull on an object.

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Imagine you're a superhero with the power to control objects. What do objects at rest resist?

• The urge to dance

• The call of the wild

• The temptation of a chocolate cake

• Your superhero command to move

Imagine you're a tiny ant and you see a lamp sitting on a table. Would you say it's balanced or unbalanced?

• balanced

• unbalanced

Imagine you're in a race car, zooming around a mountain curve! Would you say the car is experiencing balanced or unbalanced acceleration?

• balanced

• unbalanced

Imagine you're watching two ice skaters gracefully gliding across the ice, moving in a straight line at a constant speed. Would you say the forces at play are balanced or unbalanced?

• balanced

• unbalanced

Imagine you're a skier, zipping down the mountain, weaving through flags in a thrilling race. Would you say you're balanced or unbalanced?

• balanced

• unbalanced

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Imagine you're a superhero and you've just been hit by a super-villain's unbalanced force attack! What do you think would happen to your speed?

• You'd either speed up or slow down.

• You'd only speed up.

• Your speed would remain the same.

• You'd only slow down.

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