12-1 Quiz

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1 point

What unbalanced force is needed to give a 976 kg vehicle an acceleration of 2.50 m/s^2?

2440 N

2440 lbs

390 N

390 lbs

1 point

If an equal force is applied to two cars of equal mass, Car A and Car B, Car A will have ____________________ acceleration as (than) Car B.

greater

the opposite

the same

less

1 point

Which statement illustrates Newton's first law?

a stone will not move unless something pushes or pulls it

a ball rolling across the floor eventually slows down

as a car comes to a stop, the passengers continue to move forward

all of the above

1 point

What force causes a skater on the ice to gradually slow down?

a balanced force

friction

inertia

acceleration

1 point

1 Newton is the force that can give 1 kg of mass an acceleration of

1 meter per second squared

9.8 meters per second squared

1 meter per second

9.8 meters per second

1 point

A seat belt helps you when your car stops suddenly by providing a(n)

balanced forward force

balanced backwards force

unbalanced forward force

unbalanced backwards force

1 point

Which of the following will result in the greatest acceleration

23 N acting on 5 Kg

23 N acting on 1 Kg

56 N acting on 1 Kg

56 N acting on 2 Kg

1 point

Which object has the greatest inertia?

a beach ball

a bowling ball

a volleyball

a tennis ball

1 point

A 0.25 kg steel ball experiences a net force of 1.15 N as it rolls down a ramp. What is the acceleration of the ball?

0.90 m/s^2

1.4 m/s^2

4.6 m/s^2

0.29 m/s^2

10.

1 point

A force of 240.0 N causes an object to accelerate at 3.2 m/s ^2. What is the mass of the object?

768 kg

240 kg

75 kg

0.013 kg

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