Physics Year 10

The average speed of a car with a given total distance travel 60km and time taken for whole journey 30 minutes in km/h is

• 100 km/h

• 120 km/h

• 140 km/h

• 160 km/h

An object accelerate from 2.0m/s to 4.0m/s in 1second. The object acceleration is

• 1.0 m/s²

• 2.0 m/s²

• 3.0 m/s²

• 4.0 m/s²

Resultant force is equals to

• mass / volume

• mass X velocity

• mass X gravity

• mass X acceleration

Object movement slowing down indicates that the object____.

change of speed divide by time taken is formula for

• acceleration

• velocity

• force

• impulse

total momentum before and after is equals definition for

• momentum of an collision

• conservation of impulse

• change of force over time

• conservation of momentum

Given density of an object is 2.5kg/m³ with mass 5.0kg. What is the volume of the object?

• 2.0 m³

• 4.0 m³

• 1.0 m³

• 3.0 m³

mass X gravity constant X height is formula for

• electrical energy

• potential energy

• kinetic energy

• gravitational potential energy

A man carry a box with mass 10kg and going up 5.0m from the ground. Find the gravitational potential energy of that man

• 400 J

• 500 J

• 600 J

• 700 J

The only difference between scalar and vector quantity is _________.