Forces and electricity

A measure of how fast velocity is changing is called ...

• force

• motion

• acceleration

• momentum

A combination of mass and velocity.

• force

• motion

• acceleration

• momentum

Scalar quantities include ... (SELECT ALL THAT APPLY)

• distance

• speed

• energy

• time

A resultant force of 4.0N acts on an object of mass 0.50 kg for 3.0 seconds.

What is the change in velocity caused by this force?

• 4.0 m / s

• 6.0 m / s

• 12 m / s

• 24 m / s

What is the moment acting on the seesaw?

• 1.6Nm
• 15Nm
• 16N
• 4Nm

When the velocity of the car is constant, the force of friction on it is

• zero

• greater than the driving force

• smaller than the driving force

• the same size as the driving force

Which are the units for acceleration

• m/s

• m/s²

• s/m

• m/s³

The cyclist accelerates at 1.4 m/s².

The mass of the cyclist and bicycle is 60 kg.

Calculate the resultant force.

What is 'drag' another name for?

• dressing up
• air resistance
• friction
• weight

In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N.What is the resultant force?

• 50N to the left.
• 350N to the left.
• 350N to the right.
• 50N to the right.