A cyclist traveling at 25 km/hr turns sharply to the left while continuing to move 25 km/hr. This means the forces involved are_____________________.

Unbalanced, because his direction changed.

Balanced, because the cyclist's speed did not change.

Balanced, because he was still moving forward.

Unbalanced, because it's the same bicycle.

An airplane is travelling at a constant speed of 540 mph. Explain the forces at work on the plane.

Balanced, because the speed is constant and there is no change in direction

Unbalanced, because the plane is moving forward not backards

Balanced, because the plane is not falling to a lower altitude

Unbalanced, because the plane is in motion

a change in position relative to a frame of reference

the stopping of an object to a frame of reference

the middle ground between light and shadow, between science and superstition, and it lies between the pit of man's fears and the summit of his knowledge

a change in the time in which it takes to get an office referral

In a car, a good frame of reference would be:

The trees you are driving past in the car

the tissue box sitting inside your car

the old lady riding a unicycle beside your car in the same direction and at the same speed

Speed is different from velocity because

Velocity doesn't include distance

Acceleration is defined as the CHANGE in

time of motion to another place.

Physical Science 7th Grade Review

Authored by Mary Hill

Science

7th Grade

NGSS covered

Used 20+ times

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107 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a PUSH or PULL of an object?

Motion

Force

Friction

Gravity

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Why is it harder for the boy in Image B to get down the hill?

Motion

Friction

Work

Displacement

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How is gravity affected by mass?

the larger the mass of the object, the greater the gravity

small objects have no gravity

gravity is not affected by mass of objects, whether large or small

Tags

NGSS.MS-PS2-4

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the standard unit force is measured in?

Newtons

pounds

grams

meters

MULTIPLE CHOICE QUESTION

1 min • 1 pt

If you pull the cord, what direction will the box move?

Down

Left

Right

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Calculate the net force of the object in the image shown.

20N

35N

25N

Tags

CCSS.HSN.VM.A.3

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Is this a balanced or unbalance force?

Balanced

Unbalanced

Neither one

Both

Tags

NGSS.MS-PS2-2

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Physical Science 7th Grade Review

What is a PUSH or PULL of an object?

Why is it harder for the boy in Image B to get down the hill?

How is gravity affected by mass?

What is the standard unit force is measured in?

If you pull the cord, what direction will the box move?

Calculate the net force of the object in the image shown.

Is this a balanced or unbalance force?

What is the net force of this object?

Is this a balanced or unbalanced force?

If a force causes an object to start moving, stop moving, or change direction it's considered a(an)__________________force.

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