# Year 7 Forces And Magnet Test - Mr. Hung

23 Questions | Total Attempts: 1105  Settings  A force is an interaction that, when opposed will change the motion of an object. Magnetism, on the other hand, is the attraction and repulsion of forces. All year 7 students, this quiz will help advance your Physics knowledge.

• 1.
Forces can _______________ an object.
• A.

Stop the motion of

• B.

Change the mass of

• C.

Change the smell of

• D.

Change the colour of

• 2.
Which of the following is NOT a type of force?
• A.

Gravitational

• B.

Magnetic

• C.

Heat

• D.

Weight

• 3.
What is the SI unit of force?
• A.

Kilogram

• B.

Centimetre

• C.

Joules

• D.

Newton

• 4.
Which of the following action involves a push and a pull?
• A.

Dragging a chair

• B.

Punching a punching bag

• C.

Lifting a box

• D.

Turning a steering wheel

• 5.
It would probably be easiest to ride a bicycle across
• A.

Gravel

• B.

Sand

• C.

Grass

• D.

• 6.
The force that always acts opposite to the direction of the motion of an object is called
• A.

Reaction

• B.

Inertia

• C.

Friction

• D.

Lift

• 7.
Which is NOT a force?
• A.

Mass

• B.

Weight

• C.

Gravity

• D.

Air resistance

• 8.
The following helps to reduce the friction when moving a cabinet EXCEPT
• A.

Moving on a rough surface

• B.

Putting lubricant on the surface

• C.

Removing the content in the cabinet

• D.

Placing wheels for the cabinet

• 9.
The amount of force exerted on an object due to gravity is the
• A.

Mass

• B.

Weight

• C.

Upthrust

• D.

Inertia

• 10.
Which of the following is a contact force?
• A.

Static electricity

• B.

Air resistance

• C.

Magnetic force

• D.

Gravity

• 11.
The amount of matter in an object is the
• A.

Weight

• B.

Gravity

• C.

Mass

• D.

• 12.
The tendency of an object to remain at rest if at rest or to continue moving in a straight line if in motion is called
• A.

Friction

• B.

Inertia

• C.

Force

• D.

Acceleration

• 13.
Your weight changes on different planets. Which is the most important factor?
• A.

The distance away from the Sun

• B.

The size of the planet

• C.

The density of the planet

• D.

The magnetic effect of the planet

• 14.
Which of the following metals is NOT magnetic?
• A.

Iron

• B.

Cobalt

• C.

Aluminium

• D.

Nickel

• 15.
What is a magnetic field?
• A.

An object that loses its magnetism after a short time.

• B.

A magnet's ability to attract certain metals.

• C.

The space around a magnet where the force of a magnet can act.

• D.

The areas of a magnet where its force of attraction is strongest.

• 16.
In a bar magnet, the strongest magnetic force is
• A.

In the middle

• B.

At the North pole

• C.

At the South pole

• D.

At both poles

• 17.
You can magnetise a nail by
• A.

Stroking the nail with a magnet in one direction for 30 times

• B.

Heating the nail for 2 minutes

• C.

Moving the nail to and fro on the bar magnet

• D.

Using a sand paper to polish the nail

• 18.
Which of the following is CORRECT?
• A.

North pole attracts north pole

• B.

South pole attracts north pole

• C.

North pole repels south pole

• D.

South pole attracts south pole

• 19.
What is the term used to represent the micro-magnets in a magnetic substance?
• A.

Domino

• B.

Domains

• C.

Remains

• D.

Magnetlets

• 20.
The following set up is used to build
• A.

Heated nail

• B.

Magnetic coils

• C.

An electromagnet nial

• D.

A permanent magnetic nail

• 21.
Photosynthesis is a process in which green plants use ______________ to make their own ___________.
• 22.
Describe photosynthesis.
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