Class 9th PHYSICS: KINEMATICS

Speed × time is equal to

• displacement

• distance

• velocity

• velocity

Scalar quantities are completely described by their.

• Unit

• Area

• Direction

• Magnitude

Gravitational acceleration for bodies falling down freely is

• positive

• negative

• zero

• always equal to one

Tags

NGSS.MS-PS2-4

Gravitational acceleration is acceleration of bodies

• On ground

• In air

• Freely falling

• None of above

Tags

NGSS.MS-PS2-2

Flying speed of a falcon is

• 100 kmh^-1

• 200 kmh^-1

• 50 kmh^-1

• 500 kmh^-1

Tags

NGSS.MS-PS3-1

A stone is dropped from top of a building which is 180 metres high. If stone hits ground after 6 seconds, its final velocity will be.

• 40 ms⁻¹

• 50 ms⁻¹

• 60 ms⁻¹

• 110 ms⁻¹

Tags

NGSS.HS-PS2-1

NGSS.HS-PS2-4

If object is at rest then distance-time graph is

• straight lined

• variable

• constant

• none of above

Velocity with which a paratrooper comes to ground is called

• average velocity

• variable velocity

• constant velocity

• terminal velocity

Tags

NGSS.MS-PS3-1

In a graph, in which time is taken along X-axis and speed is taken along Y-axis is called

• speed-time graph

• pi chart

• distance graph

• none of above

If a body does changes its position with respect to its surroundings, it is said to be at

• distance

• position

• rest

• motion