PRE-UPS 1 SP015 2024/2025

What is the dimension for Power?

• M L^-1 T^-2

• M L^-2 T^-2

• M L² T^-3

• M L² T^-2

Which one is CORRECT about the dimension of momentum?

• [ momentum ] = M L T^-1

• [ momentum ] = M L T^-2

• [ momentum ] = M L² T^-1

• [ momentum ] = M L² T^-2

Which of the following quantities are scalar?

• Displacement, speed, acceleration

• Distance, speed, acceleration

• Impulse, momentum, force

• Work, energy, power

The rate of change of displacement is called ________.

• distance.

• displacement.

• velocity.

• acceleration.

Name the physical quantity which we get from the area under the graph of velocity-time graph?

• Distance

• Displacement

• Velocity

• Acceleration

The diagram show a projectile motion, what is the value of u?

• u_x = u cos θ , u_y = u sin θ

• u_x = -u cos θ , u_y = u sin θ

• u_x = u cos θ , u_y = -u sin θ

• u_x = u , u_y = 0

The diagram show a projectile motion, what is the value of u?

• u_x = -u cos θ, u_y = u sin θ

• u_x = u cos θ, u_y = -u sin θ

• u_x = u cos θ, u_y = u sin θ

• u_x = -u cos θ, u_y = -u sin θ

Which one is NOT TRUE when the ball is in projectile motion, at any point; its path can be resolved into _______.

• a_x not affected by gravity

• a_y affected by gravity

• a_x affected by gravity

• a_x = 0

The area under the graph of F-t graph is ___________.

• momentum

• impulse

• work done

• power

Refer the diagram, how many forces act on the sled while moving on the snow?

• 1

• 2

• 3

• 4