HPHys Circular Motion

Centripetal force is an acceleration of an object moving in circular path whose direction is _________________________of the circular path and whose magnitude is equal to the square of the speed divided by the radius.

• towards the tangent

• towards the centre

• towards the minimum point

• towards the maximum point

Tags

NGSS.HS-PS2-1

Which of the following is the unit for centripetal force?

• J
• m/s²
• kg⋅m/s
• N

The time taken for one complete circuit is called the... 

• Period
• Frequency 
• Angular velocity

If an object is spinning around on a string and the string was suddenly cut, the object would move in a

• curved path

• straight line

Tags

NGSS.HS-PS2-1

Planets orbit the Sun in a shape called a(n)

• circle
• ellipse
• focus
• perihelion

Tags

NGSS.HS-ESS1-4

An ellipse is drawn around two points called

• aphelion
• perihelion
• foci
• axis

When a planet orbits the Sun, one of the foci of the elliptical orbit is 

• the axis
• the perihelion
• the center
• the Sun

Tags

NGSS.HS-ESS1-4

The place where a planet is closest to the Sun as it orbits the Sun is called the

• perihelion
• aphelion

Tags

NGSS.HS-ESS1-4

Where is the planet moving faster

• Position A to B
• Position B to C
• Position H to I
• Position I to J

Tags

NGSS.HS-ESS1-4

What is true about the area between points A, B and the Sun, and the area between points H, I and the Sun?

• The area between A, B and the Sun is the largest.
• The area between H, I and the Sun is the largest
• Both areas are equal in size
• There is not enough information to determine the areas

Tags

NGSS.HS-ESS1-4