Know It All Friday - 8th Science - 11/5/21

What is represented by the blue lines?

• Trough
• Crest
• Wavelength
• Amplitude

What part is the arrow pointing to?

• Crest
• Trough
• Amplitude
• Wavelength

What kind of wave is pictured?

• Transverse
• Longitudinal
• surface
• none of the above

Any material that a wave travels through is called a ____________________.

• vibration
• compression
• medium
• crest

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

• 20N
• 35N
• 5N
• 25N

Which direction will the object move?

• Up
• Down
• Right
• Left

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

• Balanced
• Unbalanced
• Magnetic
• Gravitational

The force that pulls objects towards each other.

• gravity
• friction
• mass
• weight

Two factors that affect gravity

• mass and distance
• types of surfaces and how hard they are pushed together
• force and distance
• mass and direction

When two solid surfaces slide over each other.

• sliding friction
• rolling friction
• fluid friction
• static friction