- has lost electrons.
- has gained electrons.
- has zero energy.
- has more electrons than protons.

- The person and car will stop together.
- The car is still in motion.
- The driver does not move.
- The car will stop and the person will keep moving forward because of inertia.

- mass of the visitors.
- weight of the visitors.
- energy of the visitors..
- height of the visitors.

For the cart to reach the top of the hill, what is the minimum kinetic energy of the cart in the position shown?

Assume that energy loss due to friction is negligable

- 49 J
- 490 J
- 4.9 J
- 0 J

- 49,000 J
- 45,000 J
- 44,100 J
- 42,000 J

Calculate the mass of the ball.

- 0.2 kg.
- 0.25 kg.
- 0.35 kg.
- 0.5 kg.

Calculate is its mass.

- 2,000 kg.
- 3,000 kg.
- 4,000 kg.
- 5,000 kg.

If the squirrel has a mass of 0.8 kg and the acceleration of the leap is 5 m/s

Find the force the squirrel exerts when leaping?

- 5 m/s
^{2} - 4 m/s
^{2} - 3 m/s
^{2}. - 2 m/s
^{2}

- No comparison.
- Exactly same.
- Electron's charge is bigger
- Proton's charge is bigger

Find the distance between the two protons.

- 0.1 m
- 0.01 m
- 0.005 m
- 0.071 m

Assumne the sister exerts a 8-newton force on the child for 0.40 second, calculate the magnitude of the impulse imparted to the child by his sister.

- 0.3 N
- 0.4 N
- 0.5 N
- 0.2 N

- Ohm
- Ampere
- Volt
- Watt
- Joule

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Date of last modification: Summer , 2019