Inclined Planes and Controlled Experiments

What is a disadvantage of using an inclined plane to lift a heavy object?

• The object must be moved a greater distance.
• It takes less effort to move the object.
• Many objects are difficult to lift straight up.
• Heavy object usually take up more space.

Tags

NGSS.MS-PS2-2

Students pulled the same mass up an inclined plane that was 20 cm, 30 cm, and 40 cm long. Each time, they used a spring scale to measure the force needed to pull the mass up the inclined plane. What did they conclude?

• Less force was needed on the 20 cm plane
• More force was needed on the 40 cm inclined plane.
• The least amount of force was needed on the 40 cm inclined plane.
• The least amount of force was needed on the 30 cm inclined plane.

Tags

NGSS.MS-PS2-2

Which of the following decreases when an object is moved using an inclined plane?

• The distance the object moves.
• The pull of gravity on the object.
• The force needed to move the object.
• The amount of space the object occupies.

Tags

NGSS.MS-PS2-2

What does an inclined plane look like from the side?

• square

• rectangle

• triangle

• circle

Is a staircase an inclined plane?

• Yes

• No

How does using an inclined plane make lifting a load easier?

• it makes the mass levitate upward
• it increases the force needed to lift a mass
• it decreases the force needed to lift a mass
• it doesn't help

A device that transmits or modifies force or motion

• Slope and Rise
• Load
• Simple Machine
• Mechanical Advantage

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

NGSS.MS-ETS1-4

The inclined plane makes work easier by _____ the amount of effort that must be applied to raise or lower a load.

• increasing
• accelerating
• reducing
• softening

Experiment: How does watching TV during studying affect a student’s test grades?

The students grades are the ___________ variable.

• independent
• dependent

Experiment: Do roses grow more in height in partial or direct sunlight?
The growth height is the ____________  variable.

• independent
• dependent

Tags

NGSS.MS-LS1-5