Which of the following could be an example of an unbalanced force?

A baseball that has been thrown to home plate

A plate sitting on a dining table.

A ball at the top of a hill that is not moving

An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.

Unbalanced, because the speed is constant and there is a change in direction

Unbalanced, because the plane is moving forward, not backwards

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

Unbalanced, because the plane is in motion

In which direction does gravity act?

Towards the centre of the Earth

If a feather and a hammer are dropped at the same time on the moon, where there is no atmosphere, which one will hit the ground first?

Neither, there is no gravity on the moon.

hammer because it has more mass

feather because it has less mass

Mass is a measurement of

how much matter is present in an object

how much weight is present in an object

the amount a spring is compressed on a scale

none of the answers are correct

Gravity on moon is less than the gravity on earth because

c. moon's mass is equal to Earth

What is meant by fossil fuels?

Fuels that are derived from fossils

Fuels that are derived from old people

Fuels that are derived from using plant material

Fuels that are derived from the decomposition of faeces

The renewable energy resources are…

Geothermal, wave, wind, solar, tidal, Biofuels

Step-up and step-down transformers

The non-renewable energy resources are…

Geothermal, wave, wind, solar, tidal, Biofuels

Step-up and step-down transformers

How much of our energy is produced from the Sun

All the solar energy which is not a big percentage

Most of the energy in living things

Which of the following is an example of friction that is helpful?

All are examples that are helpful

Tread on the bottom of your shoes

How can friction be reduced?

all of the above are ways of reducing friction

reduce the force acting between the 2 surfaces

reduce the roughness of the 2 surfaces coming in contact

Which of the following is an example of friction that is harmful?

sand placed on ice in the winter

Which piece of evidence BEST represents Chemical PE being released?

a rubber band flung a far distance

Year 7-Phantastic Physics

Authored by Jody Harris

Science

7th Grade

NGSS covered

Used 20+ times

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50 questions

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MULTIPLE CHOICE QUESTION

2 mins • 1 pt

These forces are...

Balanced

Unbalanced

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

These forces are...

Balanced

Unbalanced

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The net force is...

50 N

0 N

100 N

2500 N

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of the following statements is true?

Balanced forces cause a change in motion.

Unbalanced forces cause a change in motion.

Forces do not effect the change in motion.

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

How will this object move?

It won't move.

It will move to the right.

It will move to the left.

It will move up.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is the net force?

40 N left

0 N Balalnced

400 N right

40 N right

Tags

NGSS.MS-PS2-2

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Calculate the Net Force.

60N, Left

40N, Right

60N, Right

Tags

NGSS.MS-PS2-2

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Year 7-Phantastic Physics

These forces are...

These forces are...

The net force is...

Which of the following statements is true?

How will this object move?

What is the net force?

Calculate the Net Force.

You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?

What is true about this picture?

Which of the following is an example of an unbalanced force?

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