Industrial Arts Quiz 2

Abrasive means something is capable of:

• sawing through wood
• rubbing or grinding a surface
• waxing a surface
• removing dust

Answer explanation

Sand is an example of an abrasive particle.

What is the purpose of using a sanding block?

• To smooth the surface and remove scratches
• To achieve a smooth, polished surface
• To maintain even pressure and prevent uneven sanding
• To remove imperfections and shape the wood

Answer explanation

The larger the surface the more even the sanding.

When sanding or chiseling, you shoud always work in which direction?

• Left
• Against the grain
• Right
• With the grain

Answer explanation

With the direction of the wood lines!

String Art was invented to teach kids about what?

• Painting techniques
• Math concepts
• Hammering nails
• Weaving string

Answer explanation

Although kids practice hammering, weaving, and sanding skills, String Art was truly invented with the purpose of teaching math concepts by connecting points (nails) with lines (string) to create various shapes. Geometry!

Which term refers to a ballistic device used since ancient times to launch projectiles great distances with natural energy?

• Ballistic
• Propellant
• Catapult
• Projectile

Answer explanation

We made one with popsicle sticks, rubberbands, a paper cup, and glue.  Simple!

What did we use as projectiles with the catapult?

• Mini marshmallows
• Screws
• Nails
• Rubberbands

Answer explanation

A projectile is something that is launched from a device such as a catapult.

What is grit?

• A type of woodcarving technique
• The force applied when hammering nails
• A measurement of potential energy
• The rating of the size of the abrasive particles in sandpaper

Answer explanation

It is important to remember the differences between grit ratings.

Which type of sandpaper should you start your project with?

• Coarse
• Fine
• Both coarse and fine
• It doesn't matter

Answer explanation

Always start with a coarser sandpaper and work towards a finer one.

Which IS one of Newton's Three Laws of Motion?

• Objects do not always have the potential to move.
• When an external force acts on a body, it produces an acceleration of the body in the direction of the force.
• Every action speaks for itself.

Answer explanation

An external force changes the direction or speed of an object in space.

Where should you position your fingers while hammering?

• Towards the top of the nails
• Towards the middle of the nails
• Towards the bottom of the nails
• You have to hold the nails while hammering?

Answer explanation

Safety first!