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Force and Motion

Authored by Maryliz Zapata

Science

8th Grade

NGSS covered

Used 6+ times

Force and Motion
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19 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

When an object is at rest, what is its speed?

2m/s2

1m/s2

3m/s2

0m/s2

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Newton's first law of motion states that an object will stay at rest unless a(an) ____________________ acts on it.

unbalanced force

variable speed

balanced force

strong force

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

An 80kg long jumper in flight accelerates at a rate 10/s2 . What is the force of the long jumper?

900n

80n

800n

0.5n

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

When forces are balanced, the total force_________?

is greater than the sum of of the forces

is equal to the two forces combined

is negative

is zero

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A person in a head-on collision who is not wearing a seat belt continues to move forward at the original speed of the car because of________?

friction

gravity

inertia

weight

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Force is measured in what units?

kilograms

Newton

degrees

m/s2

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A force is exerted on a box and an equal and opposite force is exerted by the box. What explains this?

conservation of energy

Newton's second law of motion

Newton's first law of motion

Newton's third law of motion

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