IPC S2 Final Practice

The law of conservation of momentum states that momentum cannot be created or destroyed, only _________ between objects.

• kept

• transferred

• lost

• made

Marvin walks forward +1 m to +4 m, then he turns around and walks backward to to -2 m. What is the DISPLACEMENT?

• -3 m

• 9 m

• -2 m

• +1m

The law of conservation of energy states that momentum cannot be created or destroyed, but it can change ___

• Form

• Speed

• Size

• Shape

What is the kinetic energy of a 2.5 kg ball traveling at 3.4 m/s?

• 28.9 J

• 14.5 J

• 8.5 J

• 4.25 J

A 12 kg box is accelerating -9.8 m/s2 toward Earth. What is the force of gravity on the box?

• -1.22 N

• 12 N

• -118 N

• -9.8 N

In water (H2O), which of the atoms does not share electrons well?

• oxygen

• alkaseltzer

• both

• hydrogen

To find the mass number of an isotope:

• protons + neutrons

• protons+electrons

• mass - neutrons

• mass - protons

When a car decelerates, the car is:

• staying the same

• slowing down

• not moving

• speeding up

What is the total number of protons in Calcium-41?

• 41

• 20

• 16

• 21

Distance is always

• negative

• nothing

• positive

• zero